From 282251f0261d2f543f075ccc2bc36807e715c98c Mon Sep 17 00:00:00 2001
From: James Price <j.price@bristol.ac.uk>
Date: Fri, 24 Feb 2017 12:48:00 +0000
Subject: [PATCH] Add options for specific targets in OpenACC.make

---
 OpenACC.make | 30 +++++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 7 deletions(-)

diff --git a/OpenACC.make b/OpenACC.make
index 161c20e..af27481 100644
--- a/OpenACC.make
+++ b/OpenACC.make
@@ -6,25 +6,41 @@ endif
 COMPILER_ = $(CXX)
 COMPILER_PGI = pgc++
 COMPILER_CRAY = CC
-CXX = $(COMPILER_$(COMPILER))
 
 FLAGS_ = -O3
 
 FLAGS_PGI = -std=c++11 -O3 -acc
 ifeq ($(COMPILER), PGI)
+define target_help
+Set a TARGET to ensure PGI targets the correct offload device.
+Available targets are:
+  SNB, IVB, HSW, BDW, KNL
+  KEPLER, MAXWELL, PASCAL
+  HAWAII
+endef
 ifndef TARGET
-$(info Set a TARGET to ensure PGI targets the correct offload device. i.e. TARGET=GPU or CPU)
+$(error $(target_help))
 endif
+TARGET_FLAGS_SNB     = -ta=multicore -tp=sandybridge
+TARGET_FLAGS_IVB     = -ta=multicore -tp=ivybridge
+TARGET_FLAGS_HSW     = -ta=multicore -tp=haswell
+TARGET_FLAGS_BDW     = -ta=multicore -tp=haswell # Not yet supported directly
+TARGET_FLAGS_KNL     = -ta=multicore -tp=haswell # Not yet supported directly
+TARGET_FLAGS_KEPLER  = -ta=nvidia:cc35
+TARGET_FLAGS_MAXWELL = -ta=nvidia:cc50
+TARGET_FLAGS_PASCAL  = -ta=nvidia:cc60
+TARGET_FLAGS_HAWAII  = -ta=radeon:hawaii
+ifeq ($(TARGET_FLAGS_$(TARGET)),)
+$(error $(target_help))
 endif
-ifeq ($(TARGET), GPU)
-FLAGS_PGI += -ta=nvidia
-else ifeq ($(TARGET), CPU)
-FLAGS_PGI += -ta=multicore
+
+FLAGS_PGI += $(TARGET_FLAGS_$(TARGET))
+
 endif
 
 FLAGS_CRAY = -hstd=c++11
 CXXFLAGS = $(FLAGS_$(COMPILER))
 
 acc-stream: main.cpp ACCStream.cpp
-	$(CXX) $(CXXFLAGS) -DACC $^ $(EXTRA_FLAGS) -o $@
+	$(COMPILER_$(COMPILER)) $(CXXFLAGS) -DACC $^ $(EXTRA_FLAGS) -o $@