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OpenCL kernel run tests #11

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merged 3 commits into from
Nov 26, 2023
Merged

OpenCL kernel run tests #11

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dcb7075
kernel compile and run tests for opencl
Qazalin Nov 26, 2023
141dd63
ctype_buffer to a helper since it can be shared with others
Qazalin Nov 26, 2023
e41fb8f
Revert "ctype_buffer to a helper since it can be shared with others"
Qazalin Nov 26, 2023
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28 changes: 28 additions & 0 deletions test/test_opencl.py
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Original file line number Diff line number Diff line change
Expand Up @@ -69,5 +69,33 @@ def test_create_program(self):
assert binary_sizes[0] > 0
assert len(binary_pointers[0]) > 0

def test_run_program(self):
program = cl_compile(self.context, self.device_array, """
__kernel void vector_add(__global int *A, __global const int *B, __global const int *C) {
int i = get_global_id(0);
A[i] = B[i] + C[i];
}""")
status = ctypes.c_int32()
kernel = cl.clCreateKernel(program, b"vector_add", ctypes.byref(status))
check(status.value)
assert kernel is not None

A = (ctypes.c_int32 * 5)()
B = (ctypes.c_int32 * 5)(1, 2, 3, 4, 5)
C = (ctypes.c_int32 * 5)(5, 4, 3, 2, 1)

bufA = cl.clCreateBuffer(self.context, cl.CL_MEM_WRITE_ONLY, ctypes.sizeof(A), None, ctypes.byref(status))
bufB = cl.clCreateBuffer(self.context, cl.CL_MEM_READ_ONLY | cl.CL_MEM_COPY_HOST_PTR, ctypes.sizeof(B), ctypes.byref(B), ctypes.byref(status))
bufC = cl.clCreateBuffer(self.context, cl.CL_MEM_READ_ONLY | cl.CL_MEM_COPY_HOST_PTR, ctypes.sizeof(C), ctypes.byref(C), ctypes.byref(status))
cl.clSetKernelArg(kernel, 0, ctypes.sizeof(bufA), ctypes.byref(bufA))
cl.clSetKernelArg(kernel, 1, ctypes.sizeof(bufB), ctypes.byref(bufB))
cl.clSetKernelArg(kernel, 2, ctypes.sizeof(bufC), ctypes.byref(bufC))

global_size = ctypes.c_size_t(5)
cl.clEnqueueNDRangeKernel(self.queue, kernel, 1, None, ctypes.byref(global_size), None, 0, None, None)
cl.clFinish(self.queue)
cl.clEnqueueReadBuffer(self.queue, bufA, cl.CL_TRUE, 0, ctypes.sizeof(A), ctypes.byref(A), 0, None, None)
self.assertEqual(list(A), [6, 6, 6, 6, 6])

if __name__ == '__main__':
unittest.main()