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Merge pull request #2 from lim0606/master
add cuda support (temporary)
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#!/usr/bin/env bash | ||
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CUDA_PATH=/usr/local/cuda/ | ||
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cd src | ||
echo "Compiling my_lib kernels by nvcc..." | ||
nvcc -c -o my_lib_cuda_kernel.cu.o my_lib_cuda_kernel.cu -x cu -Xcompiler -fPIC -arch=sm_52 | ||
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cd ../ | ||
python build.py |
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#include <THC/THC.h> | ||
#include <stdbool.h> | ||
#include <stdio.h> | ||
#include "my_lib_cuda_kernel.h" | ||
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#define real float | ||
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// this symbol will be resolved automatically from PyTorch libs | ||
extern THCState *state; | ||
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// Bilinear sampling is done in BHWD (coalescing is not obvious in BDHW) | ||
// we assume BHWD format in inputImages | ||
// we assume BHW(YX) format on grids | ||
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int BilinearSamplerBHWD_updateOutput_cuda(THCudaTensor *inputImages, THCudaTensor *grids, THCudaTensor *output) | ||
{ | ||
// THCState *state = getCutorchState(L); | ||
// THCudaTensor *inputImages = (THCudaTensor *)luaT_checkudata(L, 2, "torch.CudaTensor"); | ||
// THCudaTensor *grids = (THCudaTensor *)luaT_checkudata(L, 3, "torch.CudaTensor"); | ||
// THCudaTensor *output = (THCudaTensor *)luaT_checkudata(L, 4, "torch.CudaTensor"); | ||
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int success = 0; | ||
success = BilinearSamplerBHWD_updateOutput_cuda_kernel(output->size[2], | ||
output->size[1], | ||
output->size[0], | ||
THCudaTensor_size(state, inputImages, 3), | ||
THCudaTensor_size(state, inputImages, 1), | ||
THCudaTensor_size(state, inputImages, 2), | ||
THCudaTensor_size(state, output, 2), | ||
THCudaTensor_data(state, inputImages), | ||
THCudaTensor_stride(state, inputImages, 0), | ||
THCudaTensor_stride(state, inputImages, 3), | ||
THCudaTensor_stride(state, inputImages, 1), | ||
THCudaTensor_stride(state, inputImages, 2), | ||
THCudaTensor_data(state, grids), | ||
THCudaTensor_stride(state, grids, 0), | ||
THCudaTensor_stride(state, grids, 3), | ||
THCudaTensor_stride(state, grids, 1), | ||
THCudaTensor_stride(state, grids, 2), | ||
THCudaTensor_data(state, output), | ||
THCudaTensor_stride(state, output, 0), | ||
THCudaTensor_stride(state, output, 3), | ||
THCudaTensor_stride(state, output, 1), | ||
THCudaTensor_stride(state, output, 2), | ||
THCState_getCurrentStream(state)); | ||
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//check for errors | ||
if (!success) { | ||
THError("aborting"); | ||
} | ||
return 1; | ||
} | ||
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int BilinearSamplerBHWD_updateGradInput_cuda(THCudaTensor *inputImages, THCudaTensor *grids, THCudaTensor *gradInputImages, | ||
THCudaTensor *gradGrids, THCudaTensor *gradOutput) | ||
{ | ||
// THCState *state = getCutorchState(L); | ||
// THCudaTensor *inputImages = (THCudaTensor *)luaT_checkudata(L, 2, "torch.CudaTensor"); | ||
// THCudaTensor *grids = (THCudaTensor *)luaT_checkudata(L, 3, "torch.CudaTensor"); | ||
// THCudaTensor *gradInputImages = (THCudaTensor *)luaT_checkudata(L, 4, "torch.CudaTensor"); | ||
// THCudaTensor *gradGrids = (THCudaTensor *)luaT_checkudata(L, 5, "torch.CudaTensor"); | ||
// THCudaTensor *gradOutput = (THCudaTensor *)luaT_checkudata(L, 6, "torch.CudaTensor"); | ||
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int success = 0; | ||
success = BilinearSamplerBHWD_updateGradInput_cuda_kernel(gradOutput->size[2], | ||
gradOutput->size[1], | ||
gradOutput->size[0], | ||
THCudaTensor_size(state, inputImages, 3), | ||
THCudaTensor_size(state, inputImages, 1), | ||
THCudaTensor_size(state, inputImages, 2), | ||
THCudaTensor_size(state, gradOutput, 2), | ||
THCudaTensor_data(state, inputImages), | ||
THCudaTensor_stride(state, inputImages, 0), | ||
THCudaTensor_stride(state, inputImages, 3), | ||
THCudaTensor_stride(state, inputImages, 1), | ||
THCudaTensor_stride(state, inputImages, 2), | ||
THCudaTensor_data(state, grids), | ||
THCudaTensor_stride(state, grids, 0), | ||
THCudaTensor_stride(state, grids, 3), | ||
THCudaTensor_stride(state, grids, 1), | ||
THCudaTensor_stride(state, grids, 2), | ||
THCudaTensor_data(state, gradInputImages), | ||
THCudaTensor_stride(state, gradInputImages, 0), | ||
THCudaTensor_stride(state, gradInputImages, 3), | ||
THCudaTensor_stride(state, gradInputImages, 1), | ||
THCudaTensor_stride(state, gradInputImages, 2), | ||
THCudaTensor_data(state, gradGrids), | ||
THCudaTensor_stride(state, gradGrids, 0), | ||
THCudaTensor_stride(state, gradGrids, 3), | ||
THCudaTensor_stride(state, gradGrids, 1), | ||
THCudaTensor_stride(state, gradGrids, 2), | ||
THCudaTensor_data(state, gradOutput), | ||
THCudaTensor_stride(state, gradOutput, 0), | ||
THCudaTensor_stride(state, gradOutput, 3), | ||
THCudaTensor_stride(state, gradOutput, 1), | ||
THCudaTensor_stride(state, gradOutput, 2), | ||
THCState_getCurrentStream(state)); | ||
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//check for errors | ||
if (!success) { | ||
THError("aborting"); | ||
} | ||
return 1; | ||
} | ||
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int BilinearSamplerBHWD_updateGradInputOnlyGrid_cuda(THCudaTensor *inputImages, THCudaTensor *grids, | ||
THCudaTensor *gradGrids, THCudaTensor *gradOutput) | ||
{ | ||
// THCState *state = getCutorchState(L); | ||
// THCudaTensor *inputImages = (THCudaTensor *)luaT_checkudata(L, 2, "torch.CudaTensor"); | ||
// THCudaTensor *grids = (THCudaTensor *)luaT_checkudata(L, 3, "torch.CudaTensor"); | ||
// THCudaTensor *gradGrids = (THCudaTensor *)luaT_checkudata(L, 5, "torch.CudaTensor"); | ||
// THCudaTensor *gradOutput = (THCudaTensor *)luaT_checkudata(L, 6, "torch.CudaTensor"); | ||
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int success = 0; | ||
success = BilinearSamplerBHWD_updateGradInputOnlyGrid_cuda_kernel( | ||
gradOutput->size[2], | ||
gradOutput->size[1], | ||
gradOutput->size[0], | ||
THCudaTensor_size(state, inputImages, 3), | ||
THCudaTensor_size(state, inputImages, 1), | ||
THCudaTensor_size(state, inputImages, 2), | ||
THCudaTensor_size(state, gradOutput, 2), | ||
THCudaTensor_data(state, inputImages), | ||
THCudaTensor_stride(state, inputImages, 0), | ||
THCudaTensor_stride(state, inputImages, 3), | ||
THCudaTensor_stride(state, inputImages, 1), | ||
THCudaTensor_stride(state, inputImages, 2), | ||
THCudaTensor_data(state, grids), | ||
THCudaTensor_stride(state, grids, 0), | ||
THCudaTensor_stride(state, grids, 3), | ||
THCudaTensor_stride(state, grids, 1), | ||
THCudaTensor_stride(state, grids, 2), | ||
THCudaTensor_data(state, gradGrids), | ||
THCudaTensor_stride(state, gradGrids, 0), | ||
THCudaTensor_stride(state, gradGrids, 3), | ||
THCudaTensor_stride(state, gradGrids, 1), | ||
THCudaTensor_stride(state, gradGrids, 2), | ||
THCudaTensor_data(state, gradOutput), | ||
THCudaTensor_stride(state, gradOutput, 0), | ||
THCudaTensor_stride(state, gradOutput, 3), | ||
THCudaTensor_stride(state, gradOutput, 1), | ||
THCudaTensor_stride(state, gradOutput, 2), | ||
THCState_getCurrentStream(state)); | ||
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//check for errors | ||
if (!success) { | ||
THError("aborting"); | ||
} | ||
return 1; | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,11 @@ | ||
// Bilinear sampling is done in BHWD (coalescing is not obvious in BDHW) | ||
// we assume BHWD format in inputImages | ||
// we assume BHW(YX) format on grids | ||
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int BilinearSamplerBHWD_updateOutput_cuda(THCudaTensor *inputImages, THCudaTensor *grids, THCudaTensor *output); | ||
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int BilinearSamplerBHWD_updateGradInput_cuda(THCudaTensor *inputImages, THCudaTensor *grids, THCudaTensor *gradInputImages, | ||
THCudaTensor *gradGrids, THCudaTensor *gradOutput); | ||
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int BilinearSamplerBHWD_updateGradInputOnlyGrid_cuda(THCudaTensor *inputImages, THCudaTensor *grids, | ||
THCudaTensor *gradGrids, THCudaTensor *gradOutput); |
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