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Move softmax partial kernels to matmul

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This commit is contained in:
Matúš Námešný
2024-04-11 22:01:47 +02:00
parent bf7c961b9e
commit 710a33bdde
6 changed files with 274 additions and 212 deletions
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124
test/kernels/test_matmul.cu
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@@ -73,33 +73,141 @@ TEST(MatMulTest, MatVecMulTest) {
TEST(MatMulTest, MaxReduceTest) {
cudaError_t cudaStatus;
std::vector<float> input = {0.643f, 0.912f, 0.723f, 0.587f, 0.155f, 0.932f, 0.391f, 0.279f, 0.846f, 0.788f};
const int n = 1 << 16;
std::vector<float> input(n);
for (int i = 0; i < n; i++) {
input[i] = i;
}
float* d_input;
float* d_output;
cudaStatus = cudaMalloc((void**)&d_input, sizeof(float) * 10);
cudaStatus = cudaMalloc((void**)&d_input, sizeof(float) * n);
EXPECT_EQ(cudaStatus, cudaSuccess);
cudaStatus = cudaMalloc((void**)&d_output, sizeof(float));
EXPECT_EQ(cudaStatus, cudaSuccess);
cudaStatus = cudaMemcpy(d_input, input.data(), sizeof(float) * 10, cudaMemcpyHostToDevice);
cudaStatus = cudaMemcpy(d_input, input.data(), sizeof(float) * n, cudaMemcpyHostToDevice);
EXPECT_EQ(cudaStatus, cudaSuccess);
const int grid_size = (10 + BLOCK_SIZE - 1) / BLOCK_SIZE;
const int grid_size = (n + BLOCK_SIZE - 1) / BLOCK_SIZE;
CUDANet::Kernels::max_reduce<<<grid_size, BLOCK_SIZE>>>(d_input, d_output);
CUDANet::Kernels::max_reduce<<<1, BLOCK_SIZE>>>(d_output, d_output);
CUDANet::Kernels::max_reduce<<<grid_size, BLOCK_SIZE>>>(d_input, d_output, n);
std::vector<float> output(10);
int remaining = grid_size;
while (remaining > 1) {
int blocks_needed = (remaining + BLOCK_SIZE - 1) / BLOCK_SIZE;
CUDANet::Kernels::max_reduce<<<blocks_needed, BLOCK_SIZE>>>(d_output, d_output, remaining);
remaining = blocks_needed;
}
std::vector<float> output(n);
cudaStatus = cudaMemcpy(output.data(), d_output, sizeof(float), cudaMemcpyDeviceToHost);
EXPECT_EQ(cudaStatus, cudaSuccess);
EXPECT_EQ(output[0], 0.932f);
EXPECT_EQ(output[0], 65535.0f);
cudaFree(d_input);
cudaFree(d_output);
cudaDeviceReset();
}
TEST(MatMulTest, VecExpTest) {
cudaError_t cudaStatus;
float input[6] = {22.496f, 36.9006f, 30.9904f,
28.4213f, 26.4541f, 31.7887f};
std::vector<float> expected = {5886928896.0f, 1.06102872080384e+16f,
28771323215872.0f, 2204012904448.0f,
308226162688.0f, 63922983927808.0f};
float* d_input;
float* d_output;
cudaStatus = cudaMalloc((void**)&d_input, sizeof(float) * 6);
EXPECT_EQ(cudaStatus, cudaSuccess);
cudaStatus = cudaMalloc((void**)&d_output, sizeof(float) * 6);
EXPECT_EQ(cudaStatus, cudaSuccess);
cudaStatus =
cudaMemcpy(d_input, input, sizeof(float) * 6, cudaMemcpyHostToDevice);
EXPECT_EQ(cudaStatus, cudaSuccess);
CUDANet::Kernels::vec_exp<<<1, 6>>>(d_input, d_output, 6);
cudaStatus = cudaDeviceSynchronize();
EXPECT_EQ(cudaStatus, cudaSuccess);
std::vector<float> output(6);
cudaStatus = cudaMemcpy(
output.data(), d_output, sizeof(float) * 6, cudaMemcpyDeviceToHost
);
EXPECT_EQ(cudaStatus, cudaSuccess);
for (int i = 0; i < 6; i++) {
EXPECT_NEAR(expected[i], output[i], 1e7);
}
cudaFree(d_input);
cudaFree(d_output);
cudaDeviceReset();
}
TEST(MatMulTest, SumReduceTest) {
cudaError_t cudaStatus;
const int n = 1 << 16;
std::vector<float> input(n);
for (int i = 0; i < n; i++) {
input[i] = 1.0f;
}
const float expected = n;
float* d_input = nullptr;
float* d_sum = nullptr;
const int gridSize = (n + BLOCK_SIZE - 1) / BLOCK_SIZE;
cudaStatus = cudaMalloc((void**)&d_input, sizeof(float) * n);
EXPECT_EQ(cudaStatus, cudaSuccess);
cudaStatus = cudaMalloc((void**)&d_sum, sizeof(float) * n);
EXPECT_EQ(cudaStatus, cudaSuccess);
cudaStatus =
cudaMemcpy(d_input, input.data(), sizeof(float) * n, cudaMemcpyHostToDevice);
EXPECT_EQ(cudaStatus, cudaSuccess);
CUDANet::Kernels::sum_reduce<<<gridSize, BLOCK_SIZE>>>(
d_input, d_sum, n
);
int remaining = gridSize;
while (remaining > 1) {
std::cout << remaining << std::endl;
int blocks_needed = (remaining + BLOCK_SIZE - 1) / BLOCK_SIZE;
CUDANet::Kernels::sum_reduce<<<blocks_needed, BLOCK_SIZE>>>(d_sum, d_sum, remaining);
remaining = blocks_needed;
}
std::vector<float> sum(n);
cudaStatus = cudaMemcpy(
sum.data(), d_sum, sizeof(float) * n, cudaMemcpyDeviceToHost
);
EXPECT_EQ(cudaStatus, cudaSuccess);
EXPECT_FLOAT_EQ(expected, sum[0]);
cudaFree(d_input);
cudaFree(d_sum);
cudaDeviceReset();
}