MRCudaBasic.h

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#pragma once
 
#include "exports.h"
 
#include "MRMesh/MRMeshFwd.h"
 
namespace MR
{
 
namespace Cuda
{
 
// 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
MRCUDA_API bool isCudaAvailable( int* driverVersion = nullptr, int* runtimeVersion = nullptr, int* computeMajor = nullptr, int* computeMinor = nullptr );
 
// Returns available GPU memory in bytes
MRCUDA_API size_t getCudaAvailableMemory();
 
// Returns maximum safe amount of free GPU memory that will be used for dynamic-sized buffers
MRCUDA_API size_t getCudaSafeMemoryLimit();
 
// Returns maximum buffer size in elements that can be allocated with given memory limit
MRCUDA_API size_t maxBufferSize( size_t availableBytes, size_t elementCount, size_t elementBytes );
 
// Returns maximum buffer size in elements that can be allocated with given memory limit
// The size is aligned to the block dimensions
MRCUDA_API size_t maxBufferSizeAlignedByBlock( size_t availableBytes, const Vector2i& blockDims, size_t elementBytes );
MRCUDA_API size_t maxBufferSizeAlignedByBlock( size_t availableBytes, const Vector3i& blockDims, size_t elementBytes );
 
} //namespace Cuda
 
} //namespace MR