MRCudaBasic.h

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#pragma once
 
#include <MRCCuda/exports.h>
#include <MRCMisc/common.h>
 
#include <stdbool.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct MR_Vector2i MR_Vector2i; // Defined in `#include <MRCMesh/MRVector2.h>`.
typedef struct MR_Vector3i MR_Vector3i; // Defined in `#include <MRCMesh/MRVector3.h>`.
 
 
// Returns true if Cuda is present on this GPU
// optional out maximum driver supported version
// optional out current runtime version
// optional out compute capability major version
// optional out compute capability minor version
MRC_CUDA_API bool MR_Cuda_isCudaAvailable(int *driverVersion, int *runtimeVersion, int *computeMajor, int *computeMinor);
 
// Returns available GPU memory in bytes
MRC_CUDA_API MR_uint64_t MR_Cuda_getCudaAvailableMemory(void);
 
// Returns maximum safe amount of free GPU memory that will be used for dynamic-sized buffers
MRC_CUDA_API MR_uint64_t MR_Cuda_getCudaSafeMemoryLimit(void);
 
// Returns maximum buffer size in elements that can be allocated with given memory limit
MRC_CUDA_API MR_uint64_t MR_Cuda_maxBufferSize(MR_uint64_t availableBytes, MR_uint64_t elementCount, MR_uint64_t elementBytes);
 
// Returns maximum buffer size in elements that can be allocated with given memory limit
// The size is aligned to the block dimensions
MRC_CUDA_API MR_uint64_t MR_Cuda_maxBufferSizeAlignedByBlock_MR_Vector2i(MR_uint64_t availableBytes, const MR_Vector2i *blockDims, MR_uint64_t elementBytes);

MRC_CUDA_API MR_uint64_t MR_Cuda_maxBufferSizeAlignedByBlock_MR_Vector3i(MR_uint64_t availableBytes, const MR_Vector3i *blockDims, MR_uint64_t elementBytes);
 
#ifdef __cplusplus
} // extern "C"
#endif