1 // Copyright (c) 2017, Lawrence Livermore National Security, LLC. Produced at 2 // the Lawrence Livermore National Laboratory. LLNL-CODE-734707. All Rights 3 // reserved. See files LICENSE and NOTICE for details. 4 // 5 // This file is part of CEED, a collection of benchmarks, miniapps, software 6 // libraries and APIs for efficient high-order finite element and spectral 7 // element discretizations for exascale applications. For more information and 8 // source code availability see http://github.com/ceed. 9 // 10 // The CEED research is supported by the Exascale Computing Project 17-SC-20-SC, 11 // a collaborative effort of two U.S. Department of Energy organizations (Office 12 // of Science and the National Nuclear Security Administration) responsible for 13 // the planning and preparation of a capable exascale ecosystem, including 14 // software, applications, hardware, advanced system engineering and early 15 // testbed platforms, in support of the nation's exascale computing imperative. 16 17 #include <ceed/ceed.h> 18 #include <ceed/backend.h> 19 #include <ceed/cuda.h> 20 #include <ceed-impl.h> 21 22 /** 23 @brief Set CUDA function pointer to evaluate action at quadrature points 24 25 @param qf CeedQFunction to set device pointer 26 @param f Device function pointer to evaluate action at quadrature points 27 28 @return An error code: 0 - success, otherwise - failure 29 30 @ref User 31 **/ 32 int CeedQFunctionSetCUDAUserFunction(CeedQFunction qf, CUfunction f) { 33 int ierr; 34 if (!qf->SetCUDAUserFunction) { 35 Ceed ceed; 36 ierr = CeedQFunctionGetCeed(qf, &ceed); CeedChk(ierr); 37 CeedDebug(ceed, "Backend does not support CUfunction pointers for QFunctions."); 38 } else { 39 ierr = qf->SetCUDAUserFunction(qf, f); CeedChk(ierr); 40 } 41 return CEED_ERROR_SUCCESS; 42 } 43