1 // Copyright (c) 2017-2022, Lawrence Livermore National Security, LLC and other CEED contributors. 2 // All Rights Reserved. See the top-level LICENSE and NOTICE files for details. 3 // 4 // SPDX-License-Identifier: BSD-2-Clause 5 // 6 // This file is part of CEED: http://github.com/ceed 7 8 #include <ceed/ceed.h> 9 #include <ceed/backend.h> 10 #include <string.h> 11 #include <stdlib.h> 12 #include "ceed-magma.h" 13 14 CEED_INTERN int CeedInit_Magma_Det(const char *resource, Ceed ceed) { 15 int ierr; 16 const int nrc = 18; // number of characters in resource 17 if (strncmp(resource, "/gpu/cuda/magma/det", nrc) 18 && strncmp(resource, "/gpu/hip/magma/det", nrc)) 19 // LCOV_EXCL_START 20 return CeedError(ceed, CEED_ERROR_BACKEND, 21 "Magma backend cannot use resource: %s", resource); 22 // LCOV_EXCL_STOP 23 ierr = CeedSetDeterministic(ceed, true); CeedChkBackend(ierr); 24 25 Ceed_Magma *data; 26 ierr = CeedCalloc(sizeof(Ceed_Magma), &data); CeedChkBackend(ierr); 27 ierr = CeedSetData(ceed, data); CeedChkBackend(ierr); 28 29 // get/set device ID 30 const char *device_spec = strstr(resource, ":device_id="); 31 const int deviceID = (device_spec) ? atoi(device_spec+11) : -1; 32 33 int currentDeviceID; 34 magma_getdevice(¤tDeviceID); 35 if (deviceID >= 0 && currentDeviceID != deviceID) { 36 magma_setdevice(deviceID); 37 currentDeviceID = deviceID; 38 } 39 // create a queue that uses the null stream 40 data->device = currentDeviceID; 41 42 // Create reference CEED that implementation will be dispatched 43 // through unless overridden 44 Ceed ceedref; 45 #ifdef HAVE_HIP 46 CeedInit("/gpu/hip/magma", &ceedref); 47 #else 48 CeedInit("/gpu/cuda/magma", &ceedref); 49 #endif 50 ierr = CeedSetDelegate(ceed, ceedref); CeedChkBackend(ierr); 51 52 // Create reference CEED for restriction 53 Ceed restrictionceedref; 54 #ifdef HAVE_HIP 55 CeedInit("/gpu/hip/ref", &restrictionceedref); 56 #else 57 CeedInit("/gpu/cuda/ref", &restrictionceedref); 58 #endif 59 ierr = CeedSetObjectDelegate(ceed, restrictionceedref, "ElemRestriction"); 60 CeedChkBackend(ierr); 61 62 return CEED_ERROR_SUCCESS; 63 } 64 65 CEED_INTERN int CeedRegister_Magma_Det(void) { 66 #ifdef HAVE_HIP 67 return CeedRegister("/gpu/hip/magma/det", CeedInit_Magma_Det, 125); 68 #else 69 return CeedRegister("/gpu/cuda/magma/det", CeedInit_Magma_Det, 125); 70 #endif 71 } 72