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106 Module DocumentationNote:See also:Note that this function may also return error codes from previous, asynchronous launches.cuCtxAttach, cuCtxCreate, cuCtxDestroy, cuCtxGetDevice, cuCtxPopCurrent, cuCtxPushCurrent, cuCtxSynchronize3.20.2.5 CUresult cuCtxGetDevice (CUdevice ∗ device)Returns in ∗device the ordinal of the current context’s device.Parameters:device - Returned device ID for the current contextReturns:Note:CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_-ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE,See also:Note that this function may also return error codes from previous, asynchronous launches.cuCtxAttach, cuCtxCreate, cuCtxDestroy, cuCtxDetach, cuCtxPopCurrent, cuCtxPushCurrent, cuCtxSynchronize3.20.2.6 CUresult cuCtxPopCurrent (CUcontext ∗ pCtx)Pops the current CUDA context from the CPU thread. The CUDA context must have a usage count of 1. CUDA contextshave a usage count of 1 upon creation; the usage count may be incremented with cuCtxAttach() and decrementedwith cuCtxDetach().If successful, cuCtxPopCurrent() passes back the new context handle in ∗pCtx. The old context may then be madecurrent to a different CPU thread by calling cuCtxPushCurrent().Floating contexts may be destroyed by calling cuCtxDestroy().If a context was current to the CPU thread before cuCtxCreate() or cuCtxPushCurrent() was called, this function makesthat context current to the CPU thread again.Parameters:pCtx - Returned new context handleReturns:Note:CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_-ERROR_INVALID_CONTEXTSee also:Note that this function may also return error codes from previous, asynchronous launches.cuCtxAttach, cuCtxCreate, cuCtxDestroy, cuCtxDetach, cuCtxGetDevice, cuCtxPushCurrent, cuCtxSynchronizeGenerated on Wed Apr 1 16:11:42 2009 for NVIDIA CUDA Library by Doxygen
3.20 Context Management 1073.20.2.7 CUresult cuCtxPushCurrent (CUcontext NewCtx)Pushes the given context NewCtx onto the CPU thread’s stack of current contexts. The specified context becomes theCPU thread’s current context, so all CUDA functions that operate on the current context are affected.The previous current context may be made current again by calling cuCtxDestroy() or cuCtxPopCurrent().The context must be "floating," i.e. not attached to any thread. Contexts are made to float by calling cuCtxPopCurrent().Parameters:NewCtx - Floating context to attachReturns:Note:CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_-ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUESee also:Note that this function may also return error codes from previous, asynchronous launches.cuCtxAttach, cuCtxCreate, cuCtxDestroy, cuCtxDetach, cuCtxGetDevice, cuCtxPopCurrent, cuCtxSynchronize3.20.2.8 CUresult cuCtxSynchronize (void)Blocks until the device has completed all preceding requested tasks. cuCtxSynchronize() returns an error if one of thepreceding tasks failed.Returns:Note:CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_-ERROR_INVALID_CONTEXTSee also:Note that this function may also return error codes from previous, asynchronous launches.cuCtxAttach, cuCtxCreate, cuCtxDestroy, cuCtxDetach, cuCtxGetDevice, cuCtxPopCurrent, cuCtxSynchronizeGenerated on Wed Apr 1 16:11:42 2009 for NVIDIA CUDA Library by Doxygen
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NVIDIA CUDAReference ManualVersion
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iiCONTENTS3.5 Stream Management . .
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ivCONTENTS3.10 Direct3D 9 Interoper
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viCONTENTS3.15.2.2 cudaComputeMode
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viiiCONTENTS3.24.2.11 cuParamSetv .
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xCONTENTS3.28.2.3 cuD3D9GetDirect3D
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xiiCONTENTS4.3.1 Detailed Descripti
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2 Module IndexGenerated on Wed Apr
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6 Module Documentation3.2 Thread Ma
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36 Module Documentationdirection of
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40 Module DocumentationcudaMemcpy3D
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42 Module Documentation3.8.2.24 cud
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44 Module Documentation3.8.2.27 cud
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46 Module DocumentationSee also:cud
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54 Module Documentation3.10 Direct3
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170 Module Documentation3.27 OpenGL
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174 Module Documentation3.28 Direct
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208 Data Structure Documentation4.2
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IndexC++ API Routines, 81Context Ma
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224 INDEXCUDA_TYPES, 200CUctx_flags
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226 INDEXCU_FUNC_ATTRIBUTE_MAX_THRE
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228 INDEXcudaD3D9ResourceSetMapFlag
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230 INDEXcudaMemcpyToArrayCUDART_ME
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232 INDEXcudaStream_t, 91CUDART_VER
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234 INDEXcuMemcpyAtoACUMEM, 147cuMe
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NoticeALL NVIDIA DESIGN SPECIFICATI
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