Add Crossbeam implementation
Add rustfmt and use target-cpu=native Add option for libc malloc, basic thread pinning, touch-free allocation Split modules
This commit is contained in:
Tom Lin
parent
c70a5da45b
commit
fdb2c181cc
2
rust-stream/.cargo/config.toml
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rust-stream/.cargo/config.toml
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[build]
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rustflags = ["-C", "target-cpu=native"]
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rust-stream/Cargo.lock
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|
"crossbeam-channel",
|
||||||
"crossbeam-deque",
|
"crossbeam-deque",
|
||||||
@ -229,22 +393,69 @@ dependencies = [
|
|||||||
"num_cpus",
|
"num_cpus",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "redox_syscall"
|
||||||
|
version = "0.2.8"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "742739e41cd49414de871ea5e549afb7e2a3ac77b589bcbebe8c82fab37147fc"
|
||||||
|
dependencies = [
|
||||||
|
"bitflags",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "rust-stream"
|
name = "rust-stream"
|
||||||
version = "3.4.0"
|
version = "3.4.0"
|
||||||
dependencies = [
|
dependencies = [
|
||||||
|
"colour",
|
||||||
|
"core_affinity",
|
||||||
|
"crossbeam",
|
||||||
|
"libc",
|
||||||
"num-traits",
|
"num-traits",
|
||||||
|
"num_cpus",
|
||||||
"rayon",
|
"rayon",
|
||||||
|
"rustversion",
|
||||||
"structopt",
|
"structopt",
|
||||||
"tabular",
|
"tabular",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "rustversion"
|
||||||
|
version = "1.0.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "61b3909d758bb75c79f23d4736fac9433868679d3ad2ea7a61e3c25cfda9a088"
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "scopeguard"
|
name = "scopeguard"
|
||||||
version = "1.1.0"
|
version = "1.1.0"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
|
checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "signal-hook"
|
||||||
|
version = "0.1.17"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "7e31d442c16f047a671b5a71e2161d6e68814012b7f5379d269ebd915fac2729"
|
||||||
|
dependencies = [
|
||||||
|
"libc",
|
||||||
|
"mio",
|
||||||
|
"signal-hook-registry",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "signal-hook-registry"
|
||||||
|
version = "1.4.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "e51e73328dc4ac0c7ccbda3a494dfa03df1de2f46018127f60c693f2648455b0"
|
||||||
|
dependencies = [
|
||||||
|
"libc",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "smallvec"
|
||||||
|
version = "1.6.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "fe0f37c9e8f3c5a4a66ad655a93c74daac4ad00c441533bf5c6e7990bb42604e"
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "strsim"
|
name = "strsim"
|
||||||
version = "0.8.0"
|
version = "0.8.0"
|
||||||
@ -277,9 +488,9 @@ dependencies = [
|
|||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "syn"
|
name = "syn"
|
||||||
version = "1.0.64"
|
version = "1.0.73"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "3fd9d1e9976102a03c542daa2eff1b43f9d72306342f3f8b3ed5fb8908195d6f"
|
checksum = "f71489ff30030d2ae598524f61326b902466f72a0fb1a8564c001cc63425bcc7"
|
||||||
dependencies = [
|
dependencies = [
|
||||||
"proc-macro2",
|
"proc-macro2",
|
||||||
"quote",
|
"quote",
|
||||||
@ -318,9 +529,9 @@ checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
|
|||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "unicode-xid"
|
name = "unicode-xid"
|
||||||
version = "0.2.1"
|
version = "0.2.2"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
|
checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "vec_map"
|
name = "vec_map"
|
||||||
@ -334,6 +545,12 @@ version = "0.9.3"
|
|||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
|
checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "winapi"
|
||||||
|
version = "0.2.8"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "winapi"
|
name = "winapi"
|
||||||
version = "0.3.9"
|
version = "0.3.9"
|
||||||
@ -344,6 +561,12 @@ dependencies = [
|
|||||||
"winapi-x86_64-pc-windows-gnu",
|
"winapi-x86_64-pc-windows-gnu",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "winapi-build"
|
||||||
|
version = "0.1.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "winapi-i686-pc-windows-gnu"
|
name = "winapi-i686-pc-windows-gnu"
|
||||||
version = "0.4.0"
|
version = "0.4.0"
|
||||||
|
|||||||
@ -10,4 +10,22 @@ edition = "2018"
|
|||||||
num-traits = "0.2.14"
|
num-traits = "0.2.14"
|
||||||
structopt = "0.3.13"
|
structopt = "0.3.13"
|
||||||
tabular = "0.1.4"
|
tabular = "0.1.4"
|
||||||
rayon = "1.5"
|
rayon = "1.5.1"
|
||||||
|
crossbeam = "0.8.1"
|
||||||
|
num_cpus = "1.13.0"
|
||||||
|
rustversion = "1.0"
|
||||||
|
libc = "0.2.97"
|
||||||
|
core_affinity = "0.5.10"
|
||||||
|
colour = "0.6.0"
|
||||||
|
|
||||||
|
[build-dependencies]
|
||||||
|
rustversion = "1.0"
|
||||||
|
|
||||||
|
[profile.dev]
|
||||||
|
opt-level = 2
|
||||||
|
overflow-checks = true
|
||||||
|
|
||||||
|
|
||||||
|
[profile.release]
|
||||||
|
opt-level = 3
|
||||||
|
lto = "thin" # fully enabling this (i.e true) negatively affects performance as tested on both AMD and Intel
|
||||||
|
|||||||
72
rust-stream/README.md
Normal file
72
rust-stream/README.md
Normal file
@ -0,0 +1,72 @@
|
|||||||
|
rust-stream
|
||||||
|
===========
|
||||||
|
|
||||||
|
This is an implementation of BabelStream in Rust.
|
||||||
|
|
||||||
|
Currently, we support three CPU threading API as devices:
|
||||||
|
|
||||||
|
* Plain - basic single-threaded `for` version, see [plain_stream.rs](src/plain_stream.rs)
|
||||||
|
* [Rayon](https://github.com/rayon-rs/rayon) - Parallel with high level API,
|
||||||
|
see [rayon_stream.rs](src/rayon_stream.rs)
|
||||||
|
* [Crossbeam](https://github.com/crossbeam-rs/crossbeam) - Parallel with partitions per thread,
|
||||||
|
see [crossbeam_stream.rs](src/crossbeam_stream.rs)
|
||||||
|
|
||||||
|
In addition, this implementation also supports the following extra flags:
|
||||||
|
|
||||||
|
```
|
||||||
|
--init Initialise each benchmark array at allocation time on the main thread
|
||||||
|
--malloc Use libc malloc instead of the Rust's allocator for benchmark array allocation
|
||||||
|
--pin Pin threads to distinct cores, this has NO effect in Rayon devices
|
||||||
|
```
|
||||||
|
|
||||||
|
There is an ongoing investigation on potential performance issues under NUMA situations. As part of
|
||||||
|
the experiment, this implementation made use of the
|
||||||
|
provisional [Allocator traits](https://github.com/rust-lang/rust/issues/32838) which requires rust
|
||||||
|
unstable. We hope a NUMA aware allocator will be available once the allocator API reaches rust
|
||||||
|
stable.
|
||||||
|
|
||||||
|
### Build & Run
|
||||||
|
|
||||||
|
Prerequisites:
|
||||||
|
|
||||||
|
* [Rust toolchain](https://www.rust-lang.org/tools/install)
|
||||||
|
|
||||||
|
Once the toolchain is installed, enable the nightly channel:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
> rustup install nightly
|
||||||
|
> rustup default nightly # optional, this sets `+nightly` automatically for cargo calls later
|
||||||
|
```
|
||||||
|
|
||||||
|
With `cargo` on path, compile and run the benchmark with:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
> cd rust-stream/
|
||||||
|
> cargo +nightly build --release # or simply `cargo build --release` if nightly channel is the default
|
||||||
|
> ./target/release/rust-stream --help
|
||||||
|
rust-stream 3.4.0
|
||||||
|
|
||||||
|
USAGE:
|
||||||
|
rust-stream [FLAGS] [OPTIONS]
|
||||||
|
|
||||||
|
FLAGS:
|
||||||
|
--csv Output as csv table
|
||||||
|
--float Use floats (rather than doubles)
|
||||||
|
-h, --help Prints help information
|
||||||
|
--init Initialise each benchmark array at allocation time on the main thread
|
||||||
|
--list List available devices
|
||||||
|
--malloc Use libc malloc instead of the Rust's allocator for benchmark array allocation
|
||||||
|
--mibibytes Use MiB=2^20 for bandwidth calculation (default MB=10^6)
|
||||||
|
--nstream-only Only run nstream
|
||||||
|
--pin Pin threads to distinct cores, this has NO effect in Rayon devices
|
||||||
|
--triad-only Only run triad
|
||||||
|
-V, --version Prints version information
|
||||||
|
|
||||||
|
OPTIONS:
|
||||||
|
-s, --arraysize <arraysize> Use <arraysize> elements in the array [default: 33554432]
|
||||||
|
--device <device> Select device at <device> [default: 0]
|
||||||
|
-n, --numtimes <numtimes> Run the test <numtimes> times (NUM >= 2) [default: 100]
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
68
rust-stream/rustfmt.toml
Normal file
68
rust-stream/rustfmt.toml
Normal file
@ -0,0 +1,68 @@
|
|||||||
|
max_width = 100
|
||||||
|
hard_tabs = false
|
||||||
|
tab_spaces = 2
|
||||||
|
newline_style = "Auto"
|
||||||
|
use_small_heuristics = "Max"
|
||||||
|
indent_style = "Block"
|
||||||
|
wrap_comments = false
|
||||||
|
format_code_in_doc_comments = false
|
||||||
|
comment_width = 80
|
||||||
|
normalize_comments = false
|
||||||
|
normalize_doc_attributes = false
|
||||||
|
license_template_path = ""
|
||||||
|
format_strings = false
|
||||||
|
format_macro_matchers = false
|
||||||
|
format_macro_bodies = true
|
||||||
|
empty_item_single_line = true
|
||||||
|
struct_lit_single_line = true
|
||||||
|
fn_single_line = true
|
||||||
|
where_single_line = true
|
||||||
|
imports_indent = "Block"
|
||||||
|
imports_layout = "Mixed"
|
||||||
|
imports_granularity = "Preserve"
|
||||||
|
group_imports = "Preserve"
|
||||||
|
reorder_imports = true
|
||||||
|
reorder_modules = true
|
||||||
|
reorder_impl_items = false
|
||||||
|
type_punctuation_density = "Wide"
|
||||||
|
space_before_colon = false
|
||||||
|
space_after_colon = true
|
||||||
|
spaces_around_ranges = false
|
||||||
|
binop_separator = "Front"
|
||||||
|
remove_nested_parens = true
|
||||||
|
combine_control_expr = true
|
||||||
|
overflow_delimited_expr = false
|
||||||
|
struct_field_align_threshold = 0
|
||||||
|
enum_discrim_align_threshold = 0
|
||||||
|
match_arm_blocks = true
|
||||||
|
match_arm_leading_pipes = "Never"
|
||||||
|
force_multiline_blocks = false
|
||||||
|
fn_args_layout = "Compressed"
|
||||||
|
brace_style = "PreferSameLine"
|
||||||
|
control_brace_style = "AlwaysSameLine"
|
||||||
|
trailing_semicolon = true
|
||||||
|
trailing_comma = "Vertical"
|
||||||
|
match_block_trailing_comma = false
|
||||||
|
blank_lines_upper_bound = 1
|
||||||
|
blank_lines_lower_bound = 0
|
||||||
|
edition = "2015"
|
||||||
|
version = "One"
|
||||||
|
inline_attribute_width = 0
|
||||||
|
merge_derives = true
|
||||||
|
use_try_shorthand = false
|
||||||
|
use_field_init_shorthand = false
|
||||||
|
force_explicit_abi = true
|
||||||
|
condense_wildcard_suffixes = false
|
||||||
|
color = "Auto"
|
||||||
|
required_version = "1.4.36"
|
||||||
|
unstable_features = false
|
||||||
|
disable_all_formatting = false
|
||||||
|
skip_children = false
|
||||||
|
hide_parse_errors = false
|
||||||
|
error_on_line_overflow = false
|
||||||
|
error_on_unformatted = false
|
||||||
|
report_todo = "Never"
|
||||||
|
report_fixme = "Never"
|
||||||
|
ignore = []
|
||||||
|
emit_mode = "Files"
|
||||||
|
make_backup = false
|
||||||
223
rust-stream/src/crossbeam_stream.rs
Normal file
223
rust-stream/src/crossbeam_stream.rs
Normal file
@ -0,0 +1,223 @@
|
|||||||
|
use std::iter::Sum;
|
||||||
|
use std::slice::{Chunks, ChunksMut};
|
||||||
|
|
||||||
|
use crossbeam::thread;
|
||||||
|
|
||||||
|
use self::core_affinity::CoreId;
|
||||||
|
use crate::stream::{AllocatorType, ArrayType, RustStream, StreamData};
|
||||||
|
|
||||||
|
pub struct ThreadedDevice {
|
||||||
|
pub(crate) ncore: usize,
|
||||||
|
pub(crate) pin: bool,
|
||||||
|
pub(crate) core_ids: Vec<CoreId>,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl ThreadedDevice {
|
||||||
|
pub fn new(ncore: usize, pin: bool) -> Self {
|
||||||
|
let mut core_ids = match core_affinity::get_core_ids() {
|
||||||
|
Some(xs) => xs,
|
||||||
|
None => {
|
||||||
|
colour::e_red_ln!("Cannot enumerate cores, pinning will not work if enabled");
|
||||||
|
(0..ncore).map(|i| CoreId { id: i }).collect()
|
||||||
|
}
|
||||||
|
};
|
||||||
|
core_ids.resize(ncore, core_ids[0]);
|
||||||
|
ThreadedDevice { ncore, pin, core_ids }
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl ThreadedDevice {
|
||||||
|
// divide the length by the number of cores, the last core gets less work if it does not divide
|
||||||
|
fn chunk_size(&self, len: usize) -> usize {
|
||||||
|
(len as f64 / self.ncore as f64).ceil() as usize
|
||||||
|
}
|
||||||
|
|
||||||
|
// make a mutable chunk from the vec
|
||||||
|
fn mk_mut_chunks<'a, T, A: AllocatorType>(&self, xs: &'a mut Vec<T, A>) -> ChunksMut<'a, T> {
|
||||||
|
let len = xs.len();
|
||||||
|
xs.chunks_mut(self.chunk_size(len))
|
||||||
|
}
|
||||||
|
|
||||||
|
// make a immutable chunk from the vec
|
||||||
|
fn mk_chunks<'a, T, A: AllocatorType>(&self, xs: &'a mut Vec<T, A>) -> Chunks<'a, T> {
|
||||||
|
xs.chunks(self.chunk_size(xs.len()))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
extern crate core_affinity;
|
||||||
|
|
||||||
|
// Crossbeam threaded version, it should be semantically equal to the single threaded version
|
||||||
|
impl<T: ArrayType + Sync + Send + Sum, A: AllocatorType + Sync + Send> RustStream<T>
|
||||||
|
for StreamData<T, ThreadedDevice, A>
|
||||||
|
{
|
||||||
|
fn init_arrays(&mut self) {
|
||||||
|
thread::scope(|s| {
|
||||||
|
let init = self.init;
|
||||||
|
let pin = self.device.pin;
|
||||||
|
for (t, ((a, b), c)) in self.device.core_ids.iter().zip(
|
||||||
|
self
|
||||||
|
.device
|
||||||
|
.mk_mut_chunks(&mut self.a)
|
||||||
|
.zip(self.device.mk_mut_chunks(&mut self.b))
|
||||||
|
.zip(self.device.mk_mut_chunks(&mut self.c)),
|
||||||
|
) {
|
||||||
|
s.spawn(move |_| {
|
||||||
|
if pin {
|
||||||
|
core_affinity::set_for_current(*t);
|
||||||
|
}
|
||||||
|
for x in a.into_iter() {
|
||||||
|
*x = init.0;
|
||||||
|
}
|
||||||
|
for x in b.into_iter() {
|
||||||
|
*x = init.1;
|
||||||
|
}
|
||||||
|
for x in c.into_iter() {
|
||||||
|
*x = init.2;
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
})
|
||||||
|
.unwrap()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn copy(&mut self) {
|
||||||
|
thread::scope(|s| {
|
||||||
|
let pin = self.device.pin;
|
||||||
|
for (t, (c, a)) in self
|
||||||
|
.device
|
||||||
|
.core_ids
|
||||||
|
.iter()
|
||||||
|
.zip(self.device.mk_mut_chunks(&mut self.c).zip(self.device.mk_chunks(&mut self.a)))
|
||||||
|
{
|
||||||
|
s.spawn(move |_| {
|
||||||
|
if pin {
|
||||||
|
core_affinity::set_for_current(*t);
|
||||||
|
}
|
||||||
|
for i in 0..c.len() {
|
||||||
|
c[i] = a[i];
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
})
|
||||||
|
.unwrap()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn mul(&mut self) {
|
||||||
|
thread::scope(|s| {
|
||||||
|
let pin = self.device.pin;
|
||||||
|
let scalar = self.scalar;
|
||||||
|
for (t, (b, c)) in self
|
||||||
|
.device
|
||||||
|
.core_ids
|
||||||
|
.iter()
|
||||||
|
.zip(self.device.mk_mut_chunks(&mut self.b).zip(self.device.mk_chunks(&mut self.c)))
|
||||||
|
{
|
||||||
|
s.spawn(move |_| {
|
||||||
|
if pin {
|
||||||
|
core_affinity::set_for_current(*t);
|
||||||
|
}
|
||||||
|
for i in 0..b.len() {
|
||||||
|
b[i] = scalar * c[i];
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
})
|
||||||
|
.unwrap()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn add(&mut self) {
|
||||||
|
thread::scope(|s| {
|
||||||
|
let pin = self.device.pin;
|
||||||
|
for (t, (c, (a, b))) in (&mut self.device.core_ids.iter()).zip(
|
||||||
|
self
|
||||||
|
.device
|
||||||
|
.mk_mut_chunks(&mut self.c)
|
||||||
|
.zip(self.device.mk_chunks(&mut self.a).zip(self.device.mk_chunks(&mut self.b))),
|
||||||
|
) {
|
||||||
|
s.spawn(move |_| {
|
||||||
|
if pin {
|
||||||
|
core_affinity::set_for_current(*t);
|
||||||
|
}
|
||||||
|
for i in 0..c.len() {
|
||||||
|
c[i] = a[i] + b[i];
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
})
|
||||||
|
.unwrap()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn triad(&mut self) {
|
||||||
|
thread::scope(|s| {
|
||||||
|
let pin = self.device.pin;
|
||||||
|
let scalar = self.scalar;
|
||||||
|
for (t, (a, (b, c))) in self.device.core_ids.iter().zip(
|
||||||
|
self
|
||||||
|
.device
|
||||||
|
.mk_mut_chunks(&mut self.a)
|
||||||
|
.zip(self.device.mk_chunks(&mut self.b).zip(self.device.mk_chunks(&mut self.c))),
|
||||||
|
) {
|
||||||
|
s.spawn(move |_| {
|
||||||
|
if pin {
|
||||||
|
core_affinity::set_for_current(*t);
|
||||||
|
}
|
||||||
|
for i in 0..a.len() {
|
||||||
|
a[i] = b[i] + scalar * c[i]
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
})
|
||||||
|
.unwrap()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn nstream(&mut self) {
|
||||||
|
thread::scope(|s| {
|
||||||
|
let pin = self.device.pin;
|
||||||
|
let scalar = self.scalar;
|
||||||
|
for (t, (a, (b, c))) in self.device.core_ids.iter().zip(
|
||||||
|
self
|
||||||
|
.device
|
||||||
|
.mk_mut_chunks(&mut self.a)
|
||||||
|
.zip(self.device.mk_chunks(&mut self.b).zip(self.device.mk_chunks(&mut self.c))),
|
||||||
|
) {
|
||||||
|
s.spawn(move |_| {
|
||||||
|
if pin {
|
||||||
|
core_affinity::set_for_current(*t);
|
||||||
|
}
|
||||||
|
for i in 0..a.len() {
|
||||||
|
a[i] += b[i] + scalar * c[i]
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
})
|
||||||
|
.unwrap()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn dot(&mut self) -> T {
|
||||||
|
let mut partial_sum = vec![T::zero(); self.device.ncore];
|
||||||
|
thread::scope(|s| {
|
||||||
|
let pin = self.device.pin;
|
||||||
|
let a = &self.a;
|
||||||
|
let b = &self.b;
|
||||||
|
let chunk_indices = |i: usize| {
|
||||||
|
let chunk_size = self.device.chunk_size(self.size);
|
||||||
|
let start = i * chunk_size;
|
||||||
|
start..((start + chunk_size).min(self.size))
|
||||||
|
};
|
||||||
|
for (t, (n, acc)) in self.device.core_ids.iter().zip(partial_sum.iter_mut().enumerate()) {
|
||||||
|
s.spawn(move |_| {
|
||||||
|
if pin {
|
||||||
|
core_affinity::set_for_current(*t);
|
||||||
|
}
|
||||||
|
let mut p = T::zero();
|
||||||
|
for i in chunk_indices(n) {
|
||||||
|
p += a[i] * b[i];
|
||||||
|
}
|
||||||
|
*acc = p;
|
||||||
|
});
|
||||||
|
}
|
||||||
|
})
|
||||||
|
.unwrap();
|
||||||
|
partial_sum.into_iter().sum()
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -1,377 +1,257 @@
|
|||||||
|
#![feature(allocator_api)]
|
||||||
|
#![feature(vec_into_raw_parts)]
|
||||||
|
|
||||||
|
use std::alloc::System;
|
||||||
use std::fmt::{Debug, Display};
|
use std::fmt::{Debug, Display};
|
||||||
use std::iter::Sum;
|
use std::iter::Sum;
|
||||||
use std::mem::size_of;
|
use std::mem::size_of;
|
||||||
use std::time::{Duration, Instant};
|
use std::time::Duration;
|
||||||
|
|
||||||
use num_traits::{abs, NumAssign, Signed};
|
use num_traits::abs;
|
||||||
use num_traits::real::Real;
|
|
||||||
use rayon::prelude::*;
|
|
||||||
use structopt::StructOpt;
|
use structopt::StructOpt;
|
||||||
use tabular::{Row, Table};
|
use tabular::{Row, Table};
|
||||||
|
|
||||||
|
use crate::crossbeam_stream::ThreadedDevice;
|
||||||
|
use crate::plain_stream::SerialDevice;
|
||||||
|
use crate::rayon_stream::RayonDevice;
|
||||||
|
use crate::stream::{AllocatorType, ArrayType, RustStream, StreamData};
|
||||||
|
|
||||||
|
mod crossbeam_stream;
|
||||||
|
mod plain_stream;
|
||||||
|
mod rayon_stream;
|
||||||
|
mod stream;
|
||||||
|
|
||||||
#[derive(Debug, StructOpt)]
|
#[derive(Debug, StructOpt)]
|
||||||
struct Options {
|
struct Options {
|
||||||
/// List available devices
|
/// List available devices
|
||||||
#[structopt(long)] list: bool,
|
#[structopt(long)]
|
||||||
/// Select device at <device>
|
list: bool,
|
||||||
#[structopt(long, default_value = "0")] device: usize,
|
/// Select device at <device>
|
||||||
/// Run the test <numtimes> times (NUM >= 2)
|
#[structopt(long, default_value = "0")]
|
||||||
#[structopt(long, default_value = "100")] numtimes: usize,
|
device: usize,
|
||||||
/// Use <arraysize> elements in the array
|
/// Run the test <numtimes> times (NUM >= 2)
|
||||||
#[structopt(long, default_value = "33554432")] arraysize: usize,
|
#[structopt(long, short = "n", default_value = "100")]
|
||||||
/// Use floats (rather than doubles)
|
numtimes: usize,
|
||||||
#[structopt(long)] float: bool,
|
/// Use <arraysize> elements in the array
|
||||||
/// Only run triad
|
#[structopt(long, short = "s", default_value = "33554432")]
|
||||||
#[structopt(long)] triad_only: bool,
|
arraysize: usize,
|
||||||
/// Only run nstream
|
/// Use floats (rather than doubles)
|
||||||
#[structopt(long)] nstream_only: bool,
|
#[structopt(long)]
|
||||||
/// Output as csv table
|
float: bool,
|
||||||
#[structopt(long)] csv: bool,
|
/// Only run triad
|
||||||
/// Use MiB=2^20 for bandwidth calculation (default MB=10^6)
|
#[structopt(long)]
|
||||||
#[structopt(long)] mibibytes: bool,
|
triad_only: bool,
|
||||||
|
/// Only run nstream
|
||||||
|
#[structopt(long)]
|
||||||
|
nstream_only: bool,
|
||||||
|
/// Output as csv table
|
||||||
|
#[structopt(long)]
|
||||||
|
csv: bool,
|
||||||
|
/// Use MiB=2^20 for bandwidth calculation (default MB=10^6)
|
||||||
|
#[structopt(long)]
|
||||||
|
mibibytes: bool,
|
||||||
|
/// Use libc malloc instead of the Rust's allocator for benchmark array allocation
|
||||||
|
#[structopt(name = "malloc", long)]
|
||||||
|
malloc: bool,
|
||||||
|
/// Initialise each benchmark array at allocation time on the main thread
|
||||||
|
#[structopt(name = "init", long)]
|
||||||
|
init: bool,
|
||||||
|
/// Pin threads to distinct cores, this has NO effect in Rayon devices
|
||||||
|
#[structopt(long)]
|
||||||
|
pin: bool,
|
||||||
}
|
}
|
||||||
|
|
||||||
#[derive(PartialEq)]
|
#[derive(PartialEq)]
|
||||||
enum Benchmark { All, Triad, NStream }
|
enum Benchmark {
|
||||||
|
All,
|
||||||
struct StreamData<T> {
|
Triad,
|
||||||
size: usize,
|
NStream,
|
||||||
scalar: T,
|
|
||||||
a: Vec<T>,
|
|
||||||
b: Vec<T>,
|
|
||||||
c: Vec<T>,
|
|
||||||
}
|
}
|
||||||
|
|
||||||
impl<T: Default + Clone> StreamData<T> {
|
fn check_solution<T: ArrayType + Display + Sum + Into<f64>, D, A: AllocatorType>(
|
||||||
pub fn new(size: usize, scalar: T) -> StreamData<T> {
|
benchmark: Benchmark, numtimes: usize, vec: &StreamData<T, D, A>, dot_sum: Option<T>,
|
||||||
StreamData {
|
) {
|
||||||
size,
|
let (mut gold_a, mut gold_b, mut gold_c) = vec.init;
|
||||||
scalar,
|
for _ in 0..numtimes {
|
||||||
a: vec![T::default(); size],
|
|
||||||
b: vec![T::default(); size],
|
|
||||||
c: vec![T::default(); size],
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
struct PlainFor;
|
|
||||||
|
|
||||||
struct RayonPar;
|
|
||||||
|
|
||||||
#[inline(always)]
|
|
||||||
fn timed<F: FnOnce()>(f: F) -> Duration {
|
|
||||||
let start = Instant::now();
|
|
||||||
f();
|
|
||||||
start.elapsed()
|
|
||||||
}
|
|
||||||
|
|
||||||
#[inline(always)]
|
|
||||||
fn timed_mut<T, F: FnMut() -> T>(f: &mut F) -> (Duration, T) {
|
|
||||||
let start = Instant::now();
|
|
||||||
let x = f();
|
|
||||||
(start.elapsed(), x)
|
|
||||||
}
|
|
||||||
|
|
||||||
struct AllTiming<T> { copy: T, mul: T, add: T, triad: T, dot: T }
|
|
||||||
|
|
||||||
trait RustStream<T: Default, K> {
|
|
||||||
fn init_arrays(&mut self, init: (T, T, T));
|
|
||||||
fn copy(&mut self);
|
|
||||||
fn mul(&mut self);
|
|
||||||
fn add(&mut self);
|
|
||||||
fn triad(&mut self);
|
|
||||||
fn nstream(&mut self);
|
|
||||||
fn dot(&mut self) -> T;
|
|
||||||
|
|
||||||
fn run_all(&mut self, n: usize) -> (AllTiming<Vec<Duration>>, T) {
|
|
||||||
let mut timings: AllTiming<Vec<Duration>> = AllTiming {
|
|
||||||
copy: vec![Duration::default(); n],
|
|
||||||
mul: vec![Duration::default(); n],
|
|
||||||
add: vec![Duration::default(); n],
|
|
||||||
triad: vec![Duration::default(); n],
|
|
||||||
dot: vec![Duration::default(); n],
|
|
||||||
};
|
|
||||||
let mut last_sum = T::default();
|
|
||||||
for i in 0..n {
|
|
||||||
timings.copy[i] = timed(|| self.copy());
|
|
||||||
timings.mul[i] = timed(|| self.mul());
|
|
||||||
timings.add[i] = timed(|| self.add());
|
|
||||||
timings.triad[i] = timed(|| self.triad());
|
|
||||||
let (dot, sum) = timed_mut(&mut || self.dot());
|
|
||||||
timings.dot[i] = dot;
|
|
||||||
last_sum = sum;
|
|
||||||
}
|
|
||||||
(timings, last_sum)
|
|
||||||
}
|
|
||||||
|
|
||||||
fn run_triad(&mut self, n: usize) -> Duration {
|
|
||||||
timed(|| for _ in 0..n { self.triad(); })
|
|
||||||
}
|
|
||||||
|
|
||||||
fn run_nstream(&mut self, n: usize) -> Vec<Duration> {
|
|
||||||
(0..n).map(|_| timed(|| self.nstream())).collect::<Vec<_>>()
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
trait ArrayType: Real + NumAssign + Signed + Default {}
|
|
||||||
|
|
||||||
impl<T: Real + NumAssign + Signed + Default> ArrayType for T {}
|
|
||||||
|
|
||||||
// single threaded version
|
|
||||||
impl<T: ArrayType> RustStream<T, PlainFor> for StreamData<T> {
|
|
||||||
fn init_arrays(&mut self, init: (T, T, T)) {
|
|
||||||
self.a.fill(init.0);
|
|
||||||
self.b.fill(init.1);
|
|
||||||
self.c.fill(init.2);
|
|
||||||
}
|
|
||||||
|
|
||||||
fn copy(&mut self) {
|
|
||||||
for i in 0..self.size {
|
|
||||||
self.c[i] = self.a[i];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn mul(&mut self) {
|
|
||||||
for i in 0..self.size {
|
|
||||||
self.b[i] = self.scalar * self.c[i];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn add(&mut self) {
|
|
||||||
for i in 0..self.size {
|
|
||||||
self.c[i] = self.a[i] + self.b[i];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn triad(&mut self) {
|
|
||||||
for i in 0..self.size {
|
|
||||||
self.a[i] = self.b[i] + self.scalar * self.c[i];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn nstream(&mut self) {
|
|
||||||
for i in 0..self.size {
|
|
||||||
self.a[i] += self.b[i] * self.scalar * self.c[i];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn dot(&mut self) -> T {
|
|
||||||
let mut sum: T = T::default();
|
|
||||||
for i in 0..self.size {
|
|
||||||
sum += self.a[i] * self.b[i];
|
|
||||||
}
|
|
||||||
sum
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// Rayon version, it should be semantically equal to the single threaded version
|
|
||||||
impl<T: ArrayType + Sync + Send + Sum> RustStream<T, RayonPar> for StreamData<T> {
|
|
||||||
fn init_arrays(&mut self, init: (T, T, T)) {
|
|
||||||
self.a.fill(init.0);
|
|
||||||
self.b.fill(init.1);
|
|
||||||
self.c.fill(init.2);
|
|
||||||
}
|
|
||||||
|
|
||||||
fn copy(&mut self) {
|
|
||||||
let a = &self.a;
|
|
||||||
self.c.par_iter_mut().enumerate().for_each(|(i, c)| *c = a[i])
|
|
||||||
}
|
|
||||||
|
|
||||||
fn mul(&mut self) {
|
|
||||||
let c = &self.c;
|
|
||||||
let scalar = &self.scalar;
|
|
||||||
self.b.par_iter_mut().enumerate().for_each(|(i, b)| *b = *scalar * c[i])
|
|
||||||
}
|
|
||||||
|
|
||||||
fn add(&mut self) {
|
|
||||||
let a = &self.a;
|
|
||||||
let b = &self.b;
|
|
||||||
self.c.par_iter_mut().enumerate().for_each(|(i, c)| *c = a[i] + b[i])
|
|
||||||
}
|
|
||||||
|
|
||||||
fn triad(&mut self) {
|
|
||||||
let scalar = &self.scalar;
|
|
||||||
let b = &self.b;
|
|
||||||
let c = &self.c;
|
|
||||||
self.a.par_iter_mut().enumerate().for_each(|(i, a)| *a = b[i] + *scalar * c[i])
|
|
||||||
}
|
|
||||||
|
|
||||||
fn nstream(&mut self) {
|
|
||||||
let scalar = &self.scalar;
|
|
||||||
let b = &self.b;
|
|
||||||
let c = &self.c;
|
|
||||||
self.a.par_iter_mut().enumerate().for_each(|(i, a)| *a += b[i] + *scalar * c[i])
|
|
||||||
}
|
|
||||||
|
|
||||||
fn dot(&mut self) -> T {
|
|
||||||
let a = &self.a;
|
|
||||||
let b = &self.b;
|
|
||||||
(0..self.size).into_par_iter().fold(|| T::default(), |acc, i| acc + a[i] * b[i]).sum::<T>()
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn validate<T: ArrayType + Display + Sum + Into<f64>>(
|
|
||||||
benchmark: Benchmark,
|
|
||||||
numtimes: usize,
|
|
||||||
vec: &StreamData<T>,
|
|
||||||
dot_sum: Option<T>,
|
|
||||||
scalar: T, init: (T, T, T)) {
|
|
||||||
let (mut gold_a, mut gold_b, mut gold_c) = init;
|
|
||||||
for _ in 0..numtimes {
|
|
||||||
match benchmark {
|
|
||||||
Benchmark::All => {
|
|
||||||
gold_c = gold_a;
|
|
||||||
gold_b = scalar * gold_c;
|
|
||||||
gold_c = gold_a + gold_b;
|
|
||||||
gold_a = gold_b + scalar * gold_c;
|
|
||||||
}
|
|
||||||
Benchmark::Triad => {
|
|
||||||
gold_a = gold_b + scalar * gold_c;
|
|
||||||
}
|
|
||||||
Benchmark::NStream => {
|
|
||||||
gold_a += gold_b + scalar * gold_c;
|
|
||||||
}
|
|
||||||
};
|
|
||||||
}
|
|
||||||
let tolerance = T::epsilon().into() * 100.0f64;
|
|
||||||
let validate_xs = |name: &str, xs: &Vec<T>, from: T| {
|
|
||||||
let error = (xs.iter().map(|x| abs(*x - from)).sum::<T>()).into() / xs.len() as f64;
|
|
||||||
if error > tolerance {
|
|
||||||
eprintln!("Validation failed on {}[]. Average error {} ", name, error)
|
|
||||||
}
|
|
||||||
};
|
|
||||||
validate_xs("a", &vec.a, gold_a);
|
|
||||||
validate_xs("b", &vec.b, gold_b);
|
|
||||||
validate_xs("c", &vec.c, gold_c);
|
|
||||||
|
|
||||||
if let Some(sum) = dot_sum {
|
|
||||||
let gold_sum = (gold_a * gold_b).into() * vec.size as f64;
|
|
||||||
let error = abs((sum.into() - gold_sum) / gold_sum);
|
|
||||||
if error > 1.0e-8 {
|
|
||||||
eprintln!("Validation failed on sum. Error {} \nSum was {} but should be {}", error, sum, gold_sum);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn run_cpu<T: ArrayType + Sync + Send + Sum + Into<f64> + Display>(option: Options, scalar: T, init: (T, T, T)) {
|
|
||||||
let benchmark = match (option.nstream_only, option.triad_only) {
|
|
||||||
(true, false) => Benchmark::NStream,
|
|
||||||
(false, true) => Benchmark::Triad,
|
|
||||||
(false, false) => Benchmark::All,
|
|
||||||
(true, true) => panic!("Both triad and nstream are enabled, pick one or omit both to run all benchmarks"),
|
|
||||||
};
|
|
||||||
|
|
||||||
let array_bytes = option.arraysize * size_of::<T>();
|
|
||||||
let total_bytes = array_bytes * 3;
|
|
||||||
let (mega_scale, mega_suffix, giga_scale, giga_suffix) =
|
|
||||||
if !option.mibibytes { (1.0e-6, "MB", 1.0e-9, "GB") } else { (2f64.powi(-20), "MiB", 2f64.powi(-30), "GiB") };
|
|
||||||
|
|
||||||
if !option.csv {
|
|
||||||
println!("Running {} {} times", match benchmark {
|
|
||||||
Benchmark::All => "kernels",
|
|
||||||
Benchmark::Triad => "triad",
|
|
||||||
Benchmark::NStream => "nstream",
|
|
||||||
}, option.numtimes);
|
|
||||||
|
|
||||||
if benchmark == Benchmark::Triad {
|
|
||||||
println!("Number of elements: {}", option.arraysize);
|
|
||||||
}
|
|
||||||
|
|
||||||
println!("Precision: {}", if option.float { "float" } else { "double" });
|
|
||||||
println!("Array size: {:.1} {}(={:.1} {})",
|
|
||||||
mega_scale * array_bytes as f64, mega_suffix, giga_scale * array_bytes as f64, giga_suffix);
|
|
||||||
println!("Total size: {:.1} {}(={:.1} {})",
|
|
||||||
mega_scale * total_bytes as f64, mega_suffix, giga_scale * total_bytes as f64, giga_suffix);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
let mut vec: StreamData<T> = StreamData::<T>::new(option.arraysize, scalar);
|
|
||||||
let stream = &mut vec as &mut dyn RustStream<T, RayonPar>;
|
|
||||||
stream.init_arrays(init);
|
|
||||||
|
|
||||||
let tabulate = |xs: &Vec<Duration>, name: &str, t_size: usize| -> Vec<(&str, String)> {
|
|
||||||
let tail = &xs[1..]; // tail only
|
|
||||||
// do stats
|
|
||||||
let max = tail.iter().max().map(|d| d.as_secs_f64());
|
|
||||||
let min = tail.iter().min().map(|d| d.as_secs_f64());
|
|
||||||
match (min, max) {
|
|
||||||
(Some(min), Some(max)) => {
|
|
||||||
let avg: f64 = tail.iter().map(|d| d.as_secs_f64()).sum::<f64>() / tail.len() as f64;
|
|
||||||
let mbps = mega_scale * (t_size as f64) / min;
|
|
||||||
if option.csv {
|
|
||||||
vec![
|
|
||||||
("function", name.to_string()),
|
|
||||||
("num_times", option.numtimes.to_string()),
|
|
||||||
("n_elements", option.arraysize.to_string()),
|
|
||||||
("sizeof", t_size.to_string()),
|
|
||||||
(if option.mibibytes { "max_mibytes_per_sec" } else { "max_mbytes_per_sec" }, mbps.to_string()),
|
|
||||||
("min_runtime", min.to_string()),
|
|
||||||
("max_runtime", max.to_string()),
|
|
||||||
("avg_runtime", avg.to_string()),
|
|
||||||
]
|
|
||||||
} else {
|
|
||||||
vec![
|
|
||||||
("Function", name.to_string()),
|
|
||||||
(if option.mibibytes { "MiBytes/sec" } else { "MBytes/sec" }, format!("{:.3}", mbps)),
|
|
||||||
("Min (sec)", format!("{:.5}", min)),
|
|
||||||
("Max", format!("{:.5}", max)),
|
|
||||||
("Average", format!("{:.5}", avg)),
|
|
||||||
]
|
|
||||||
}
|
|
||||||
}
|
|
||||||
(_, _) => panic!("No min/max element for {}(size={})", name, t_size)
|
|
||||||
}
|
|
||||||
};
|
|
||||||
|
|
||||||
let tabulate_all = |xs: Vec<Vec<(&str, String)>>| {
|
|
||||||
match xs.as_slice() {
|
|
||||||
[head, .. ] => {
|
|
||||||
if option.csv {
|
|
||||||
println!("{}", head.iter().map(|(col, _)| *col).collect::<Vec<_>>().join(","));
|
|
||||||
for kvs in xs {
|
|
||||||
println!("{}", kvs.iter().map(|(_, val)| val.clone()).collect::<Vec<_>>().join(","));
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
let mut table = Table::new(&vec!["{:<}"; head.len()].join(" "));
|
|
||||||
table.add_row(head.iter().fold(Row::new(), |row, (col, _)| row.with_cell(col)));
|
|
||||||
for kvs in xs {
|
|
||||||
table.add_row(kvs.iter().fold(Row::new(), |row, (_, val)| row.with_cell(val)));
|
|
||||||
}
|
|
||||||
println!("{}", table);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
_ => panic!("Empty tabulation")
|
|
||||||
};
|
|
||||||
};
|
|
||||||
|
|
||||||
match benchmark {
|
match benchmark {
|
||||||
Benchmark::All => {
|
Benchmark::All => {
|
||||||
let (results, sum) = stream.run_all(option.numtimes);
|
gold_c = gold_a;
|
||||||
validate(benchmark, option.numtimes, &vec, Some(sum), scalar, init);
|
gold_b = vec.scalar * gold_c;
|
||||||
tabulate_all(vec![
|
gold_c = gold_a + gold_b;
|
||||||
tabulate(&results.copy, "Copy", 2 * array_bytes),
|
gold_a = gold_b + vec.scalar * gold_c;
|
||||||
tabulate(&results.mul, "Mul", 2 * array_bytes),
|
}
|
||||||
tabulate(&results.add, "Add", 3 * array_bytes),
|
Benchmark::Triad => {
|
||||||
tabulate(&results.triad, "Triad", 3 * array_bytes),
|
gold_a = gold_b + vec.scalar * gold_c;
|
||||||
tabulate(&results.dot, "Dot", 2 * array_bytes),
|
}
|
||||||
])
|
Benchmark::NStream => {
|
||||||
}
|
gold_a += gold_b + vec.scalar * gold_c;
|
||||||
Benchmark::NStream => {
|
}
|
||||||
let results = stream.run_nstream(option.numtimes);
|
|
||||||
validate(benchmark, option.numtimes, &vec, None, scalar, init);
|
|
||||||
tabulate_all(vec![
|
|
||||||
tabulate(&results, "Nstream", 4 * array_bytes)
|
|
||||||
]);
|
|
||||||
}
|
|
||||||
Benchmark::Triad => {
|
|
||||||
let results = stream.run_triad(option.numtimes);
|
|
||||||
let total_bytes = 3 * array_bytes * option.numtimes;
|
|
||||||
let bandwidth = mega_scale * (total_bytes as f64 / results.as_secs_f64());
|
|
||||||
|
|
||||||
println!("Runtime (seconds): {:.5}", results.as_secs_f64());
|
|
||||||
println!("Bandwidth ({}/s): {:.3} ", giga_suffix, bandwidth);
|
|
||||||
}
|
|
||||||
};
|
};
|
||||||
|
}
|
||||||
|
let tolerance = T::epsilon().into() * 100.0f64;
|
||||||
|
let validate_xs = |name: &str, xs: &Vec<T, A>, from: T| {
|
||||||
|
let error = (xs.iter().map(|x| abs(*x - from)).sum::<T>()).into() / xs.len() as f64;
|
||||||
|
if error > tolerance {
|
||||||
|
eprintln!("Validation failed on {}[]. Average error {} ", name, error)
|
||||||
|
}
|
||||||
|
};
|
||||||
|
validate_xs("a", &vec.a, gold_a);
|
||||||
|
validate_xs("b", &vec.b, gold_b);
|
||||||
|
validate_xs("c", &vec.c, gold_c);
|
||||||
|
|
||||||
|
if let Some(sum) = dot_sum {
|
||||||
|
let gold_sum = (gold_a * gold_b).into() * vec.size as f64;
|
||||||
|
let error = abs((sum.into() - gold_sum) / gold_sum);
|
||||||
|
if error > 1.0e-8 {
|
||||||
|
eprintln!(
|
||||||
|
"Validation failed on sum. Error {} \nSum was {} but should be {}",
|
||||||
|
error, sum, gold_sum
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn run_cpu<T: ArrayType + Sync + Send + Sum + Into<f64> + Display, D, A: AllocatorType>(
|
||||||
|
option: &Options, mut stream: StreamData<T, D, A>,
|
||||||
|
) where
|
||||||
|
StreamData<T, D, A>: RustStream<T>,
|
||||||
|
{
|
||||||
|
let benchmark = match (option.nstream_only, option.triad_only) {
|
||||||
|
(true, false) => Benchmark::NStream,
|
||||||
|
(false, true) => Benchmark::Triad,
|
||||||
|
(false, false) => Benchmark::All,
|
||||||
|
(true, true) => {
|
||||||
|
panic!("Both triad and nstream are enabled, pick one or omit both to run all benchmarks")
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
let array_bytes = option.arraysize * size_of::<T>();
|
||||||
|
let total_bytes = array_bytes * 3;
|
||||||
|
let (mega_scale, mega_suffix, giga_scale, giga_suffix) = if !option.mibibytes {
|
||||||
|
(1.0e-6, "MB", 1.0e-9, "GB")
|
||||||
|
} else {
|
||||||
|
(2f64.powi(-20), "MiB", 2f64.powi(-30), "GiB")
|
||||||
|
};
|
||||||
|
|
||||||
|
if !option.csv {
|
||||||
|
println!(
|
||||||
|
"Running {} {} times",
|
||||||
|
match benchmark {
|
||||||
|
Benchmark::All => "kernels",
|
||||||
|
Benchmark::Triad => "triad",
|
||||||
|
Benchmark::NStream => "nstream",
|
||||||
|
},
|
||||||
|
option.numtimes
|
||||||
|
);
|
||||||
|
|
||||||
|
if benchmark == Benchmark::Triad {
|
||||||
|
println!("Number of elements: {}", option.arraysize);
|
||||||
|
}
|
||||||
|
|
||||||
|
println!("Precision: {}", if option.float { "float" } else { "double" });
|
||||||
|
println!(
|
||||||
|
"Array size: {:.1} {} (={:.1} {})",
|
||||||
|
mega_scale * array_bytes as f64,
|
||||||
|
mega_suffix,
|
||||||
|
giga_scale * array_bytes as f64,
|
||||||
|
giga_suffix
|
||||||
|
);
|
||||||
|
println!(
|
||||||
|
"Total size: {:.1} {} (={:.1} {})",
|
||||||
|
mega_scale * total_bytes as f64,
|
||||||
|
mega_suffix,
|
||||||
|
giga_scale * total_bytes as f64,
|
||||||
|
giga_suffix
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
stream.init_arrays();
|
||||||
|
|
||||||
|
let tabulate = |xs: &Vec<Duration>, name: &str, t_size: usize| -> Vec<(&str, String)> {
|
||||||
|
let tail = &xs[1..]; // tail only
|
||||||
|
// do stats
|
||||||
|
let max = tail.iter().max().map(|d| d.as_secs_f64());
|
||||||
|
let min = tail.iter().min().map(|d| d.as_secs_f64());
|
||||||
|
match (min, max) {
|
||||||
|
(Some(min), Some(max)) => {
|
||||||
|
let avg: f64 = tail.iter().map(|d| d.as_secs_f64()).sum::<f64>() / tail.len() as f64;
|
||||||
|
let mbps = mega_scale * (t_size as f64) / min;
|
||||||
|
if option.csv {
|
||||||
|
vec![
|
||||||
|
("function", name.to_string()),
|
||||||
|
("num_times", option.numtimes.to_string()),
|
||||||
|
("n_elements", option.arraysize.to_string()),
|
||||||
|
("sizeof", t_size.to_string()),
|
||||||
|
(
|
||||||
|
if option.mibibytes { "max_mibytes_per_sec" } else { "max_mbytes_per_sec" },
|
||||||
|
mbps.to_string(),
|
||||||
|
),
|
||||||
|
("min_runtime", min.to_string()),
|
||||||
|
("max_runtime", max.to_string()),
|
||||||
|
("avg_runtime", avg.to_string()),
|
||||||
|
]
|
||||||
|
} else {
|
||||||
|
vec![
|
||||||
|
("Function", name.to_string()),
|
||||||
|
(if option.mibibytes { "MiBytes/sec" } else { "MBytes/sec" }, format!("{:.3}", mbps)),
|
||||||
|
("Min (sec)", format!("{:.5}", min)),
|
||||||
|
("Max", format!("{:.5}", max)),
|
||||||
|
("Average", format!("{:.5}", avg)),
|
||||||
|
]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
(_, _) => panic!("No min/max element for {}(size={})", name, t_size),
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
let tabulate_all = |xs: Vec<Vec<(&str, String)>>| {
|
||||||
|
match xs.as_slice() {
|
||||||
|
[head, ..] => {
|
||||||
|
if option.csv {
|
||||||
|
println!("{}", head.iter().map(|(col, _)| *col).collect::<Vec<_>>().join(","));
|
||||||
|
for kvs in xs {
|
||||||
|
println!("{}", kvs.iter().map(|(_, val)| val.clone()).collect::<Vec<_>>().join(","));
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
let mut table = Table::new(&vec!["{:<}"; head.len()].join(" "));
|
||||||
|
table.add_row(head.iter().fold(Row::new(), |row, (col, _)| row.with_cell(col)));
|
||||||
|
for kvs in xs {
|
||||||
|
table.add_row(kvs.iter().fold(Row::new(), |row, (_, val)| row.with_cell(val)));
|
||||||
|
}
|
||||||
|
print!("{}", table);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
_ => panic!("Empty tabulation"),
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
match benchmark {
|
||||||
|
Benchmark::All => {
|
||||||
|
let (results, sum) = stream.run_all(option.numtimes);
|
||||||
|
check_solution(benchmark, option.numtimes, &stream, Some(sum));
|
||||||
|
tabulate_all(vec![
|
||||||
|
tabulate(&results.copy, "Copy", 2 * array_bytes),
|
||||||
|
tabulate(&results.mul, "Mul", 2 * array_bytes),
|
||||||
|
tabulate(&results.add, "Add", 3 * array_bytes),
|
||||||
|
tabulate(&results.triad, "Triad", 3 * array_bytes),
|
||||||
|
tabulate(&results.dot, "Dot", 2 * array_bytes),
|
||||||
|
])
|
||||||
|
}
|
||||||
|
Benchmark::NStream => {
|
||||||
|
let results = stream.run_nstream(option.numtimes);
|
||||||
|
check_solution(benchmark, option.numtimes, &stream, None);
|
||||||
|
tabulate_all(vec![tabulate(&results, "Nstream", 4 * array_bytes)]);
|
||||||
|
}
|
||||||
|
Benchmark::Triad => {
|
||||||
|
let results = stream.run_triad(option.numtimes);
|
||||||
|
let total_bytes = 3 * array_bytes * option.numtimes;
|
||||||
|
let bandwidth = giga_scale * (total_bytes as f64 / results.as_secs_f64());
|
||||||
|
|
||||||
|
println!("Runtime (seconds): {:.5}", results.as_secs_f64());
|
||||||
|
println!("Bandwidth ({}/s): {:.3} ", giga_suffix, bandwidth);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
&stream.clean_up();
|
||||||
}
|
}
|
||||||
|
|
||||||
const VERSION: Option<&'static str> = option_env!("CARGO_PKG_VERSION");
|
const VERSION: Option<&'static str> = option_env!("CARGO_PKG_VERSION");
|
||||||
@ -381,33 +261,154 @@ static START_B: f32 = 0.2;
|
|||||||
static START_C: f32 = 0.0;
|
static START_C: f32 = 0.0;
|
||||||
static START_SCALAR: f32 = 0.4;
|
static START_SCALAR: f32 = 0.4;
|
||||||
|
|
||||||
|
static FLOAT_INIT_SCALAR: f32 = START_SCALAR;
|
||||||
|
static FLOAT_INIT: (f32, f32, f32) = (START_A, START_B, START_C);
|
||||||
|
|
||||||
|
static DOUBLE_START_SCALAR: f64 = START_SCALAR as f64;
|
||||||
|
static DOUBLE_INIT: (f64, f64, f64) = (START_A as f64, START_B as f64, START_C as f64);
|
||||||
|
|
||||||
fn main() {
|
fn main() {
|
||||||
let options: Options = Options::from_args();
|
let options: Options = Options::from_args();
|
||||||
|
|
||||||
// only CPU via Rayon for now
|
if options.numtimes < 2 {
|
||||||
let devices = vec![("CPU (Rayon)", |opt: Options| {
|
panic!("numtimes must be >= 2")
|
||||||
if opt.float {
|
}
|
||||||
run_cpu::<f32>(opt, START_SCALAR, (START_A, START_B, START_C));
|
|
||||||
} else {
|
|
||||||
run_cpu::<f64>(opt, START_SCALAR.into(), (START_A.into(), START_B.into(), START_C.into()));
|
|
||||||
}
|
|
||||||
})];
|
|
||||||
|
|
||||||
if options.list {
|
let alloc = System;
|
||||||
devices.iter().enumerate().for_each(|(i, (name, _))| {
|
let alloc_name = if options.malloc { "libc-malloc" } else { "rust-system" };
|
||||||
println!("{}: {}", i, name);
|
|
||||||
})
|
let rayon_device = &|| {
|
||||||
} else {
|
let dev = RayonDevice { pool: rayon::ThreadPoolBuilder::default().build().unwrap() };
|
||||||
match devices.get(options.device) {
|
if !options.csv {
|
||||||
Some((_, run)) => {
|
println!("Using {} thread(s), alloc={}", dev.pool.current_num_threads(), alloc_name);
|
||||||
if !&options.csv {
|
if options.pin {
|
||||||
println!("BabelStream\n\
|
colour::e_yellow_ln!("Pinning threads have no effect on Rayon!")
|
||||||
Version: {}\n\
|
}
|
||||||
Implementation: Rust+Rayon", VERSION.unwrap_or("unknown"))
|
|
||||||
}
|
|
||||||
run(options);
|
|
||||||
}
|
|
||||||
None => eprintln!("Device index({}) not available", options.device)
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
if options.float {
|
||||||
|
run_cpu(
|
||||||
|
&options,
|
||||||
|
StreamData::new_in(
|
||||||
|
options.arraysize,
|
||||||
|
FLOAT_INIT_SCALAR,
|
||||||
|
FLOAT_INIT,
|
||||||
|
dev,
|
||||||
|
alloc,
|
||||||
|
options.malloc,
|
||||||
|
options.init,
|
||||||
|
),
|
||||||
|
);
|
||||||
|
} else {
|
||||||
|
run_cpu(
|
||||||
|
&options,
|
||||||
|
StreamData::new_in(
|
||||||
|
options.arraysize,
|
||||||
|
DOUBLE_START_SCALAR,
|
||||||
|
DOUBLE_INIT,
|
||||||
|
dev,
|
||||||
|
alloc,
|
||||||
|
options.malloc,
|
||||||
|
options.init,
|
||||||
|
),
|
||||||
|
);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
let crossbeam_device = &|| {
|
||||||
|
let ncores = num_cpus::get();
|
||||||
|
let dev = ThreadedDevice::new(ncores, options.pin);
|
||||||
|
if !options.csv {
|
||||||
|
println!("Using {} thread(s), pin={}, alloc={}", ncores, options.pin, alloc_name)
|
||||||
|
}
|
||||||
|
if options.float {
|
||||||
|
run_cpu(
|
||||||
|
&options,
|
||||||
|
StreamData::new_in(
|
||||||
|
options.arraysize,
|
||||||
|
FLOAT_INIT_SCALAR,
|
||||||
|
FLOAT_INIT,
|
||||||
|
dev,
|
||||||
|
alloc,
|
||||||
|
options.malloc,
|
||||||
|
options.init,
|
||||||
|
),
|
||||||
|
);
|
||||||
|
} else {
|
||||||
|
run_cpu(
|
||||||
|
&options,
|
||||||
|
StreamData::new_in(
|
||||||
|
options.arraysize,
|
||||||
|
DOUBLE_START_SCALAR,
|
||||||
|
DOUBLE_INIT,
|
||||||
|
dev,
|
||||||
|
alloc,
|
||||||
|
options.malloc,
|
||||||
|
options.init,
|
||||||
|
),
|
||||||
|
);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
let st_device = &|| {
|
||||||
|
let dev = SerialDevice { pin: options.pin };
|
||||||
|
if !options.csv {
|
||||||
|
println!("Using 1 thread, pin={}, alloc={}", options.pin, alloc_name);
|
||||||
|
}
|
||||||
|
if options.float {
|
||||||
|
run_cpu(
|
||||||
|
&options,
|
||||||
|
StreamData::new_in(
|
||||||
|
options.arraysize,
|
||||||
|
FLOAT_INIT_SCALAR,
|
||||||
|
FLOAT_INIT,
|
||||||
|
dev,
|
||||||
|
alloc,
|
||||||
|
options.malloc,
|
||||||
|
options.init,
|
||||||
|
),
|
||||||
|
);
|
||||||
|
} else {
|
||||||
|
run_cpu(
|
||||||
|
&options,
|
||||||
|
StreamData::new_in(
|
||||||
|
options.arraysize,
|
||||||
|
DOUBLE_START_SCALAR,
|
||||||
|
DOUBLE_INIT,
|
||||||
|
dev,
|
||||||
|
alloc,
|
||||||
|
options.malloc,
|
||||||
|
options.init,
|
||||||
|
),
|
||||||
|
);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
let devices: Vec<(String, &'_ dyn Fn())> = vec![
|
||||||
|
("CPU (Rayon)".to_string(), rayon_device),
|
||||||
|
(format!("CPU (Crossbeam, pinning={})", options.pin), crossbeam_device),
|
||||||
|
("CPU (Single threaded)".to_string(), st_device),
|
||||||
|
];
|
||||||
|
|
||||||
|
if options.list {
|
||||||
|
devices.iter().enumerate().for_each(|(i, (name, _))| {
|
||||||
|
println!("[{}] {}", i, name);
|
||||||
|
})
|
||||||
|
} else {
|
||||||
|
match devices.get(options.device) {
|
||||||
|
Some((name, run)) => {
|
||||||
|
if !&options.csv {
|
||||||
|
println!(
|
||||||
|
"BabelStream\n\
|
||||||
|
Version: {}\n\
|
||||||
|
Implementation: Rust; {}",
|
||||||
|
VERSION.unwrap_or("unknown"),
|
||||||
|
name
|
||||||
|
);
|
||||||
|
if options.init {
|
||||||
|
println!("Initialising arrays on main thread");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
run();
|
||||||
|
}
|
||||||
|
None => eprintln!("Device index {} not available", options.device),
|
||||||
|
}
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
61
rust-stream/src/plain_stream.rs
Normal file
61
rust-stream/src/plain_stream.rs
Normal file
@ -0,0 +1,61 @@
|
|||||||
|
use crate::stream::{AllocatorType, ArrayType, RustStream, StreamData};
|
||||||
|
use core_affinity::CoreId;
|
||||||
|
|
||||||
|
pub struct SerialDevice {
|
||||||
|
pub(crate) pin: bool,
|
||||||
|
}
|
||||||
|
|
||||||
|
// single threaded version
|
||||||
|
impl<T: ArrayType, A: AllocatorType> RustStream<T> for StreamData<T, SerialDevice, A> {
|
||||||
|
fn init_arrays(&mut self) {
|
||||||
|
if self.device.pin {
|
||||||
|
core_affinity::set_for_current(
|
||||||
|
match core_affinity::get_core_ids().as_ref().map(|x| x.first()) {
|
||||||
|
Some(Some(x)) => *x,
|
||||||
|
_ => CoreId { id: 0 },
|
||||||
|
},
|
||||||
|
);
|
||||||
|
}
|
||||||
|
self.a.fill(self.init.0);
|
||||||
|
self.b.fill(self.init.1);
|
||||||
|
self.c.fill(self.init.2);
|
||||||
|
}
|
||||||
|
|
||||||
|
fn copy(&mut self) {
|
||||||
|
for i in 0..self.size {
|
||||||
|
self.c[i] = self.a[i];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn mul(&mut self) {
|
||||||
|
for i in 0..self.size {
|
||||||
|
self.b[i] = self.scalar * self.c[i];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn add(&mut self) {
|
||||||
|
for i in 0..self.size {
|
||||||
|
self.c[i] = self.a[i] + self.b[i];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn triad(&mut self) {
|
||||||
|
for i in 0..self.size {
|
||||||
|
self.a[i] = self.b[i] + self.scalar * self.c[i];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn nstream(&mut self) {
|
||||||
|
for i in 0..self.size {
|
||||||
|
self.a[i] += self.b[i] * self.scalar * self.c[i];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn dot(&mut self) -> T {
|
||||||
|
let mut sum = T::default();
|
||||||
|
for i in 0..self.size {
|
||||||
|
sum += self.a[i] * self.b[i];
|
||||||
|
}
|
||||||
|
sum
|
||||||
|
}
|
||||||
|
}
|
||||||
77
rust-stream/src/rayon_stream.rs
Normal file
77
rust-stream/src/rayon_stream.rs
Normal file
@ -0,0 +1,77 @@
|
|||||||
|
use std::iter::Sum;
|
||||||
|
|
||||||
|
use rayon::prelude::*;
|
||||||
|
use rayon::ThreadPool;
|
||||||
|
|
||||||
|
use crate::stream::{AllocatorType, ArrayType, RustStream, StreamData};
|
||||||
|
|
||||||
|
pub struct RayonDevice {
|
||||||
|
pub(crate) pool: ThreadPool,
|
||||||
|
}
|
||||||
|
|
||||||
|
// Rayon version, it should be semantically equal to the single threaded version
|
||||||
|
impl<T: ArrayType + Sync + Send + Sum, A: AllocatorType + Sync + Send> RustStream<T>
|
||||||
|
for StreamData<T, RayonDevice, A>
|
||||||
|
{
|
||||||
|
fn init_arrays(&mut self) {
|
||||||
|
let init = self.init;
|
||||||
|
self.a.par_iter_mut().for_each(|v| *v = init.0);
|
||||||
|
self.b.par_iter_mut().for_each(|v| *v = init.1);
|
||||||
|
self.c.par_iter_mut().for_each(|v| *v = init.2);
|
||||||
|
}
|
||||||
|
|
||||||
|
fn copy(&mut self) {
|
||||||
|
let a = &self.a;
|
||||||
|
let c = &mut self.c;
|
||||||
|
self.device.pool.install(|| {
|
||||||
|
(*c).par_iter_mut().enumerate().for_each(|(i, c)| *c = a[i]);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
fn mul(&mut self) {
|
||||||
|
let scalar = self.scalar;
|
||||||
|
let c = &self.c;
|
||||||
|
let b = &mut self.b;
|
||||||
|
self
|
||||||
|
.device
|
||||||
|
.pool
|
||||||
|
.install(|| (*b).par_iter_mut().enumerate().for_each(|(i, b)| *b = scalar * c[i]));
|
||||||
|
}
|
||||||
|
|
||||||
|
fn add(&mut self) {
|
||||||
|
let a = &self.a;
|
||||||
|
let b = &self.b;
|
||||||
|
let c = &mut self.c;
|
||||||
|
self.device.pool.install(|| (*c).par_iter_mut().enumerate().for_each(|(i, c)| *c = a[i] + b[i]))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn triad(&mut self) {
|
||||||
|
let scalar = self.scalar;
|
||||||
|
let a = &mut self.a;
|
||||||
|
let b = &self.b;
|
||||||
|
let c = &self.c;
|
||||||
|
self
|
||||||
|
.device
|
||||||
|
.pool
|
||||||
|
.install(|| (*a).par_iter_mut().enumerate().for_each(|(i, a)| *a = b[i] + scalar * c[i]))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn nstream(&mut self) {
|
||||||
|
let scalar = self.scalar;
|
||||||
|
let a = &mut self.a;
|
||||||
|
let b = &self.b;
|
||||||
|
let c = &self.c;
|
||||||
|
self
|
||||||
|
.device
|
||||||
|
.pool
|
||||||
|
.install(|| (*a).par_iter_mut().enumerate().for_each(|(i, a)| *a += b[i] + scalar * c[i]))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn dot(&mut self) -> T {
|
||||||
|
let a = &self.a;
|
||||||
|
let b = &self.b;
|
||||||
|
self.device.pool.install(|| {
|
||||||
|
(0..self.size).into_par_iter().fold(|| T::default(), |acc, i| acc + a[i] * b[i]).sum::<T>()
|
||||||
|
})
|
||||||
|
}
|
||||||
|
}
|
||||||
166
rust-stream/src/stream.rs
Normal file
166
rust-stream/src/stream.rs
Normal file
@ -0,0 +1,166 @@
|
|||||||
|
use num_traits::real::Real;
|
||||||
|
use num_traits::{NumAssign, Signed};
|
||||||
|
use std::alloc::Allocator;
|
||||||
|
use std::fmt::Debug;
|
||||||
|
use std::time::{Duration, Instant};
|
||||||
|
|
||||||
|
pub trait AllocatorType: Allocator + Copy + Clone + Default + Debug {}
|
||||||
|
impl<T: Allocator + Copy + Clone + Default + Debug> AllocatorType for T {}
|
||||||
|
|
||||||
|
pub struct StreamData<T, D, A: AllocatorType> {
|
||||||
|
pub device: D,
|
||||||
|
pub size: usize,
|
||||||
|
pub scalar: T,
|
||||||
|
pub init: (T, T, T),
|
||||||
|
pub a: Vec<T, A>,
|
||||||
|
pub b: Vec<T, A>,
|
||||||
|
pub c: Vec<T, A>,
|
||||||
|
pub needs_dealloc: bool,
|
||||||
|
}
|
||||||
|
|
||||||
|
#[inline(always)]
|
||||||
|
fn timed<F: FnOnce()>(f: F) -> Duration {
|
||||||
|
let start = Instant::now();
|
||||||
|
f();
|
||||||
|
start.elapsed()
|
||||||
|
}
|
||||||
|
|
||||||
|
#[inline(always)]
|
||||||
|
fn timed_mut<T, F: FnMut() -> T>(f: &mut F) -> (Duration, T) {
|
||||||
|
let start = Instant::now();
|
||||||
|
let x = f();
|
||||||
|
(start.elapsed(), x)
|
||||||
|
}
|
||||||
|
|
||||||
|
pub struct AllTiming<T> {
|
||||||
|
pub copy: T,
|
||||||
|
pub mul: T,
|
||||||
|
pub add: T,
|
||||||
|
pub triad: T,
|
||||||
|
pub dot: T,
|
||||||
|
}
|
||||||
|
|
||||||
|
pub trait ArrayType: Real + NumAssign + Signed + Default + Debug {}
|
||||||
|
impl<T: Real + NumAssign + Signed + Default + Debug> ArrayType for T {}
|
||||||
|
|
||||||
|
impl<T: Default + Clone, D, A: AllocatorType> StreamData<T, D, A> {
|
||||||
|
pub fn new_in(
|
||||||
|
size: usize,
|
||||||
|
scalar: T,
|
||||||
|
init: (T, T, T),
|
||||||
|
device: D,
|
||||||
|
allocator: A,
|
||||||
|
malloc: bool, //
|
||||||
|
initialise: bool, //
|
||||||
|
) -> StreamData<T, D, A> {
|
||||||
|
let mk_vec = || {
|
||||||
|
if malloc {
|
||||||
|
extern crate libc;
|
||||||
|
use std::mem;
|
||||||
|
unsafe {
|
||||||
|
// we do the typical C malloc with a NULL check here
|
||||||
|
let bytes = mem::size_of::<T>() * size;
|
||||||
|
let ptr = libc::malloc(bytes as libc::size_t) as *mut T;
|
||||||
|
if ptr.is_null() {
|
||||||
|
panic!(
|
||||||
|
"Cannot allocate {} bytes in `sizeof(T) * size` (T = {}, size = {})",
|
||||||
|
bytes,
|
||||||
|
mem::size_of::<T>(),
|
||||||
|
size
|
||||||
|
);
|
||||||
|
}
|
||||||
|
let mut xs = Vec::from_raw_parts_in(ptr, size, size, allocator);
|
||||||
|
if initialise {
|
||||||
|
xs.fill(T::default());
|
||||||
|
}
|
||||||
|
xs
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if initialise {
|
||||||
|
let mut xs = Vec::new_in(allocator);
|
||||||
|
xs.resize(size, T::default());
|
||||||
|
xs
|
||||||
|
} else {
|
||||||
|
// try not to touch the vec after allocation
|
||||||
|
let mut xs = Vec::with_capacity_in(size, allocator);
|
||||||
|
unsafe {
|
||||||
|
xs.set_len(size);
|
||||||
|
}
|
||||||
|
xs
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
StreamData {
|
||||||
|
device,
|
||||||
|
size,
|
||||||
|
scalar,
|
||||||
|
init,
|
||||||
|
a: mk_vec(),
|
||||||
|
b: mk_vec(),
|
||||||
|
c: mk_vec(),
|
||||||
|
needs_dealloc: malloc,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
pub fn clean_up(self) {
|
||||||
|
if self.needs_dealloc {
|
||||||
|
unsafe {
|
||||||
|
extern crate libc;
|
||||||
|
let free_ts = move |xs: Vec<T, A>| {
|
||||||
|
// make sure we don't call dealloc for vec anymore
|
||||||
|
// XXX it's important we don't free xs.as_mut_ptr() here and use xs.into_raw_parts_with_alloc()
|
||||||
|
// as that function handles drops semantic for us
|
||||||
|
// if we free the the raw ptr directly, the compiler will still drop the vec and then segfault
|
||||||
|
let (ptr, _, _, _) = xs.into_raw_parts_with_alloc();
|
||||||
|
libc::free(ptr as *mut libc::c_void);
|
||||||
|
};
|
||||||
|
free_ts(self.a);
|
||||||
|
free_ts(self.b);
|
||||||
|
free_ts(self.c);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
pub trait RustStream<T: Default> {
|
||||||
|
fn init_arrays(&mut self);
|
||||||
|
fn copy(&mut self);
|
||||||
|
fn mul(&mut self);
|
||||||
|
fn add(&mut self);
|
||||||
|
fn triad(&mut self);
|
||||||
|
fn nstream(&mut self);
|
||||||
|
fn dot(&mut self) -> T;
|
||||||
|
|
||||||
|
fn run_all(&mut self, n: usize) -> (AllTiming<Vec<Duration>>, T) {
|
||||||
|
let mut timings: AllTiming<Vec<Duration>> = AllTiming {
|
||||||
|
copy: vec![Duration::default(); n],
|
||||||
|
mul: vec![Duration::default(); n],
|
||||||
|
add: vec![Duration::default(); n],
|
||||||
|
triad: vec![Duration::default(); n],
|
||||||
|
dot: vec![Duration::default(); n],
|
||||||
|
};
|
||||||
|
let mut last_sum = T::default();
|
||||||
|
for i in 0..n {
|
||||||
|
timings.copy[i] = timed(|| self.copy());
|
||||||
|
timings.mul[i] = timed(|| self.mul());
|
||||||
|
timings.add[i] = timed(|| self.add());
|
||||||
|
timings.triad[i] = timed(|| self.triad());
|
||||||
|
let (dot, sum) = timed_mut(&mut || self.dot());
|
||||||
|
timings.dot[i] = dot;
|
||||||
|
last_sum = sum;
|
||||||
|
}
|
||||||
|
(timings, last_sum)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn run_triad(&mut self, n: usize) -> Duration {
|
||||||
|
timed(|| {
|
||||||
|
for _ in 0..n {
|
||||||
|
self.triad();
|
||||||
|
}
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
fn run_nstream(&mut self, n: usize) -> Vec<Duration> {
|
||||||
|
(0..n).map(|_| timed(|| self.nstream())).collect::<Vec<_>>()
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user