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30 Module Documentation • cudaError_t cudaMemcpyFromSymbol (void ∗dst, const char ∗symbol, size_t count, size_t offset, enum cudaMemcpyKind kind) Copies data from the given symbol on the device. • cudaError_t cudaMemcpyFromSymbolAsync (void ∗dst, const char ∗symbol, size_t count, size_t offset, enum cudaMemcpyKind kind, cudaStream_t stream) Copies data from the given symbol on the device. • cudaError_t cudaMemcpyToArray (struct cudaArray ∗dst, size_t wOffset, size_t hOffset, const void ∗src, size_t count, enum cudaMemcpyKind kind) Copies data between host and device. • cudaError_t cudaMemcpyToArrayAsync (struct cudaArray ∗dst, size_t wOffset, size_t hOffset, const void ∗src, size_t count, enum cudaMemcpyKind kind, cudaStream_t stream) Copies data between host and device. • cudaError_t cudaMemcpyToSymbol (const char ∗symbol, const void ∗src, size_t count, size_t offset, enum cudaMemcpyKind kind) Copies data to the given symbol on the device. • cudaError_t cudaMemcpyToSymbolAsync (const char ∗symbol, const void ∗src, size_t count, size_t offset, enum cudaMemcpyKind kind, cudaStream_t stream) Copies data to the given symbol on the device. • cudaError_t cudaMemGetInfo (size_t ∗free, size_t ∗total) Gets free and total device memory. • cudaError_t cudaMemset (void ∗devPtr, int value, size_t count) Initializes or sets device memory to a value. • cudaError_t cudaMemset2D (void ∗devPtr, size_t pitch, int value, size_t width, size_t height) Initializes or sets device memory to a value. • cudaError_t cudaMemset3D (struct cudaPitchedPtr pitchedDevPtr, int value, struct cudaExtent extent) Initializes or sets device memory to a value. • struct cudaExtent make_cudaExtent (size_t w, size_t h, size_t d) Returns a cudaExtent based on input parameters. • struct cudaPitchedPtr make_cudaPitchedPtr (void ∗d, size_t p, size_t xsz, size_t ysz) Returns a cudaPitchedPtr based on input parameters. • struct cudaPos make_cudaPos (size_t x, size_t y, size_t z) Returns a cudaPos based on input parameters. 4.8.1 Detailed Description This section describes the memory management functions of the CUDA runtime application programming interface. Generated for NVIDIA CUDA Library by Doxygen
4.8 Memory Management 31 4.8.2 Function Documentation 4.8.2.1 cudaError_t cudaFree (void ∗ devPtr) Frees the memory space pointed to by devPtr, which must have been returned by a previous call to cudaMalloc() or cudaMallocPitch(). Otherwise, or if cudaFree(devPtr) has already been called before, an error is returned. If devPtr is 0, no operation is performed. cudaFree() returns cudaErrorInvalidDevicePointer in case of failure. Parameters: devPtr - Device pointer to memory to free Returns: Note: See also: cudaSuccess, cudaErrorInvalidDevicePointer, cudaErrorInitializationError Note that this function may also return error codes from previous, asynchronous launches. cudaMalloc, cudaMallocPitch, cudaMallocArray, cudaFreeArray, cudaMallocHost, cudaFreeHost, cudaMalloc3D, cudaMalloc3DArray, cudaHostAlloc 4.8.2.2 cudaError_t cudaFreeArray (struct cudaArray ∗ array) Frees the CUDA array array, which must have been ∗ returned by a previous call to cudaMallocArray(). If cudaFreeArray(array) has already been called before, cudaErrorInvalidValue is returned. If devPtr is 0, no operation is performed. Parameters: array - Pointer to array to free Returns: Note: See also: cudaSuccess, cudaErrorInvalidValue, cudaErrorInitializationError Note that this function may also return error codes from previous, asynchronous launches. cudaMalloc, cudaMallocPitch, cudaFree, cudaMallocArray, cudaMallocHost, cudaFreeHost, cudaHostAlloc 4.8.2.3 cudaError_t cudaFreeHost (void ∗ ptr) Frees the memory space pointed to by hostPtr, which must have been returned by a previous call to cudaMallocHost() or cudaHostAlloc(). Parameters: ptr - Pointer to memory to free Generated for NVIDIA CUDA Library by Doxygen
Page 1: NVIDIA CUDA Reference Manual Versio
Page 4 and 5: ii CONTENTS 4.4.2.6 cudaSetDeviceFl
Page 6 and 7: iv CONTENTS 4.9.2 Function Document
Page 8 and 9: vi CONTENTS 4.17.2.3 cudaBindTextur
Page 10 and 11: viii CONTENTS 4.26.2.2 cuModuleGetG
Page 12 and 13: x CONTENTS 4.30.2.35 cuMemsetD2D16
Page 14 and 15: xii CONTENTS 4.37.2.5 cuD3D10Resour
Page 16 and 17: xiv CONTENTS 5.3 CUDA_MEMCPY2D_st S
Page 18 and 19: 2 Deprecated List Global cudaD3D9Re
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Page 22 and 23: 6 Module Index Direct3D 9 Interoper
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80 Module Documentation • Resourc
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100 Module Documentation See also:
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102 Module Documentation 4.19 C++ A
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104 Module Documentation 4.19.2.2 t
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106 Module Documentation array - Me
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110 Module Documentation 4.20 Data
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112 Module Documentation • typede
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114 Module Documentation cudaErrorI
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116 Module Documentation 4.21 CUDA
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118 Module Documentation 4.23 Devic
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120 Module Documentation • CU_DEV
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122 Module Documentation typedef st
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124 Module Documentation 4.24 Versi
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126 Module Documentation Returns: N
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128 Module Documentation Note: See
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130 Module Documentation 4.26 Modul
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132 Module Documentation Note: See
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134 Module Documentation optionValu
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136 Module Documentation 4.27 Strea
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138 Module Documentation 4.28 Event
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140 Module Documentation 4.28.2.4 c
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142 Module Documentation 4.29 Execu
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148 Module Documentation Parameters
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150 Module Documentation Copies mem
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152 Module Documentation unsigned i
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158 Module Documentation The pitch
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160 Module Documentation CUdevicept
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162 Module Documentation For device
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164 Module Documentation CUdevicept
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166 Module Documentation If dstMemo
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168 Module Documentation If srcMemo
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170 Module Documentation cuMemcpy3D
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172 Module Documentation 4.30.2.18
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180 Module Documentation The CUDA c
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186 Module Documentation 4.31.1 Det
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190 Module Documentation Pitch - Li
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196 Module Documentation 4.33 OpenG
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202 Module Documentation 4.34 Direc
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204 Module Documentation The Flags
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206 Module Documentation 4.35.2 Fun
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208 Module Documentation • Textur
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216 Module Documentation • CU_GRA
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230 Module Documentation resources
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234 Module Documentation 4.40 Data
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236 Module Documentation • enum C
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238 Module Documentation • typede
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240 Module Documentation 4.40.2.3 t
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242 Module Documentation 4.40.3.3 e
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244 Module Documentation CU_DEVICE_
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246 Module Documentation Enumerator
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248 Data Structure Documentation 5.
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Index C++ API Routines, 102 Context
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264 INDEX CUDA_TYPES, 239 CU_MEMHOS
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266 INDEX CUDA_ERROR_UNMAP_FAILED C
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268 INDEX CUDA_TYPES, 239 cudaBindT
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270 INDEX cudaGetLastError CUDART_E
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272 INDEX cudaGraphicsRegisterFlags
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274 INDEX CUdevice_attribute CUDA_T
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276 INDEX CUMEM, 164 cuMemcpy3DAsyn
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