CUBLAS Library

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CUDACUBLAS LibraryFunction cublasInit()cublasStatuscublasInit (void)initializes the CUBLAS library and must be called before any otherCUBLAS API function is invoked. It allocates hardware resourcesnecessary for accessing the GPU.Return ValuesCUBLAS_STATUS_ALLOC_FAILED if resources could not be allocatedCUBLAS_STATUS_SUCCESS if CUBLAS library initialized successfullyFunction cublasShutdown()cublasStatuscublasShutdown (void)releases CPU‐side resources used by the CUBLAS library. The releaseof GPU‐side resources may be deferred until the application shutsdown.Return ValuesCUBLAS_STATUS_NOT_INITIALIZED if CUBLAS library was not initializedCUBLAS_STATUS_SUCCESS CUBLAS library shut down successfullyFunction cublasGetError()cublasStatuscublasGetError (void)returns the last error that occurred on invocation of any of theCUBLAS core functions. While the CUBLAS helper functions returnstatus directly, the CUBLAS core functions do not, improvingcompatibility with those existing environments that do not expectBLAS functions to return status. Reading the error status viacublasGetError() resets the internal error state toCUBLAS_STATUS_SUCCESS.Function cublasAlloc()cublasStatuscublasAlloc (int n, int elemSize, void **devicePtr)8 PG-00000-002_V1.1NVIDIA
CHAPTER 1The CUBLAS Librarycreates an object in GPU memory space capable of holding an array ofn elements, where each element requires elemSize bytes of storage. Ifthe function call is successful, a pointer to the object in GPU memoryspace is placed in devicePtr. Note that this is a device pointer thatcannot be dereferenced in host code. Function cublasAlloc() is awrapper around cudaMalloc(). Device pointers returned bycublasAlloc() can therefore be passed to any CUDA device kernels,not just CUBLAS functions.Return ValuesCUBLAS_STATUS_NOT_INITIALIZED if CUBLAS library was not initializedCUBLAS_STATUS_INVALID_VALUE if n
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CUDACUBLAS Libraryx is an n‐eleme
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CUDACUBLAS LibraryInput (continued)
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CUDACUBLAS LibraryReference: http:/
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CUDACUBLAS LibrarySingle-precision
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CUDACUBLAS LibraryThe code in fortr
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CUDACUBLAS LibraryExample A.1. Fort
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CUBLAS Library

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