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Fix HIP memory leaks in RNN kernels #728

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Fix HIP memory leaks in RNN kernels #728

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9 changes: 9 additions & 0 deletions jaxlib/gpu/rnn_kernels.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -172,6 +172,9 @@ DoRnnComputeWorkspaceReserveSpaceSizes(int input_size, int hidden_size,
JAX_RETURN_IF_ERROR(
JAX_AS_STATUS(gpudnnDestroyRNNDataDescriptor(input_data_desc)));
JAX_RETURN_IF_ERROR(JAX_AS_STATUS(gpudnnDestroyRNNDescriptor(rnn_desc)));
#ifdef JAX_GPU_HIP
JAX_RETURN_IF_ERROR(JAX_AS_STATUS(gpuFree(dropout_states_dev)));
#endif

// Round up to nearest multiples of 4 so we can return them as f32 arrays.
workSpaceSize += (workSpaceSize % 4);
Expand Down Expand Up @@ -351,6 +354,9 @@ static absl::Status DnnRNNForward_(gpuStream_t stream, void** buffers,
JAX_RETURN_IF_ERROR(
JAX_AS_STATUS(gpudnnDestroyDropoutDescriptor(dropout_desc)));
JAX_RETURN_IF_ERROR(JAX_AS_STATUS(gpudnnDestroyRNNDescriptor(rnn_desc)));
#ifdef JAX_GPU_HIP
JAX_RETURN_IF_ERROR(JAX_AS_STATUS(gpuFree(dropout_states_dev)));
#endif

return absl::OkStatus();
}
Expand Down Expand Up @@ -536,6 +542,9 @@ static absl::Status DnnRNNBackward_(gpuStream_t stream, void** buffers,
JAX_RETURN_IF_ERROR(
JAX_AS_STATUS(gpudnnDestroyDropoutDescriptor(dropout_desc)));
JAX_RETURN_IF_ERROR(JAX_AS_STATUS(gpudnnDestroyRNNDescriptor(rnn_desc)));
#ifdef JAX_GPU_HIP
JAX_RETURN_IF_ERROR(JAX_AS_STATUS(gpuFree(dropout_states_dev)));
#endif

return absl::OkStatus();
}
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1 change: 1 addition & 0 deletions jaxlib/gpu/vendor.h
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Original file line number Diff line number Diff line change
Expand Up @@ -774,6 +774,7 @@ inline hipsparseStatus_t gpusparseCreate(gpusparseHandle_t* handle) {
#define GPU_STREAM_NON_BLOCKING hipStreamNonBlocking

#define gpuMalloc hipMalloc
#define gpuFree hipFree
#define gpuGetLastError hipExtGetLastError
#define gpuGetErrorString hipGetErrorString
#define gpuMemcpyAsync hipMemcpyAsync
Expand Down