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Create device buffers and copy host vectors to device

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This commit is contained in:
Tom Deakin 2015-07-15 23:27:19 +01:00
parent dd3ddf3aa3
commit 0d64d58c50
1 changed files with 14 additions and 0 deletions
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14
ocl-stream.cpp
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@ -57,6 +57,20 @@ int main(void)
std::vector<DATATYPE> h_a(ARRAY_SIZE, 1.0); std::vector<DATATYPE> h_a(ARRAY_SIZE, 1.0);
std::vector<DATATYPE> h_b(ARRAY_SIZE, 2.0); std::vector<DATATYPE> h_b(ARRAY_SIZE, 2.0);
std::vector<DATATYPE> h_c(ARRAY_SIZE, 0.0); std::vector<DATATYPE> h_c(ARRAY_SIZE, 0.0);
// Create device buffers
cl::Buffer d_a(context, CL_MEM_READ_WRITE, sizeof(DATATYPE) * ARRAY_SIZE);
cl::Buffer d_b(context, CL_MEM_READ_WRITE, sizeof(DATATYPE) * ARRAY_SIZE);
cl::Buffer d_c(context, CL_MEM_READ_WRITE, sizeof(DATATYPE) * ARRAY_SIZE);
// Copy host memory to device
cl::copy(queue, h_a.begin(), h_a.end(), d_a);
cl::copy(queue, h_b.begin(), h_b.end(), d_b);
cl::copy(queue, h_c.begin(), h_c.end(), d_c);
// Make sure the copies are finished
queue.finish();
} }
// Catch OpenCL Errors and display information // Catch OpenCL Errors and display information
catch (cl::Error& e) catch (cl::Error& e)