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Made the CUDA contract test more robust to numerical noise.

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This commit is contained in:
Benoit Steiner 2016-01-30 10:28:43 -08:00
parent 4281eb1e2c
commit ba27c8a7de
1 changed files with 11 additions and 7 deletions
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14
unsupported/test/cxx11_tensor_contract_cuda.cu
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@ -67,12 +67,16 @@ static void test_cuda_contraction(int m_size, int k_size, int n_size)
t_result = t_left.contract(t_right, dims); t_result = t_left.contract(t_right, dims);
cudaMemcpy(t_result_gpu.data(), d_t_result, t_result_bytes, cudaMemcpyDeviceToHost); cudaMemcpy(t_result_gpu.data(), d_t_result, t_result_bytes, cudaMemcpyDeviceToHost);
for (size_t i = 0; i < t_result.dimensions().TotalSize(); i++) { for (size_t i = 0; i < t_result.size(); i++) {
if (fabs(t_result.data()[i] - t_result_gpu.data()[i]) >= 1e-4) { if (fabs(t_result(i) - t_result_gpu(i)) < 1e-4f) {
std::cout << "mismatch detected at index " << i << ": " << t_result.data()[i] continue;
<< " vs " << t_result_gpu.data()[i] << std::endl;
assert(false);
} }
if (Eigen::internal::isApprox(t_result(i), t_result_gpu(i), 1e-4f)) {
continue;
}
std::cout << "mismatch detected at index " << i << ": " << t_result(i)
<< " vs " << t_result_gpu(i) << std::endl;
assert(false);
} }
cudaFree((void*)d_t_left); cudaFree((void*)d_t_left);