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-hip-common.h" 13 14 //------------------------------------------------------------------------------ 15 // Get root resource without device spec 16 //------------------------------------------------------------------------------ 17 int CeedHipGetResourceRoot(Ceed ceed, const char *resource, 18 char **resource_root) { 19 int ierr; 20 21 char *device_spec = strstr(resource, ":device_id="); 22 size_t resource_root_len = device_spec 23 ? (size_t)(device_spec - resource) + 1 24 : strlen(resource) + 1; 25 ierr = CeedCalloc(resource_root_len, resource_root); CeedChkBackend(ierr); 26 memcpy(*resource_root, resource, resource_root_len - 1); 27 28 return CEED_ERROR_SUCCESS; 29 } 30 31 //------------------------------------------------------------------------------ 32 // Device information backend init 33 //------------------------------------------------------------------------------ 34 int CeedHipInit(Ceed ceed, const char *resource) { 35 int ierr; 36 const char *device_spec = strstr(resource, ":device_id="); 37 const int device_id = (device_spec) ? atoi(device_spec + 11) : -1; 38 39 int current_device_id; 40 ierr = hipGetDevice(¤t_device_id); CeedChk_Hip(ceed, ierr); 41 if (device_id >= 0 && current_device_id != device_id) { 42 ierr = hipSetDevice(device_id); CeedChk_Hip(ceed, ierr); 43 current_device_id = device_id; 44 } 45 46 struct hipDeviceProp_t device_prop; 47 ierr = hipGetDeviceProperties(&device_prop, current_device_id); 48 CeedChk_Hip(ceed, ierr); 49 50 Ceed_Hip *data; 51 ierr = CeedGetData(ceed, &data); CeedChkBackend(ierr); 52 data->device_id = current_device_id; 53 data->opt_block_size = 256; 54 return CEED_ERROR_SUCCESS; 55 } 56 57 //------------------------------------------------------------------------------ 58 // Backend Destroy 59 //------------------------------------------------------------------------------ 60 int CeedDestroy_Hip(Ceed ceed) { 61 int ierr; 62 Ceed_Hip *data; 63 ierr = CeedGetData(ceed, &data); CeedChkBackend(ierr); 64 if (data->hipblas_handle) { 65 ierr = hipblasDestroy(data->hipblas_handle); CeedChk_Hipblas(ceed, ierr); 66 } 67 ierr = CeedFree(&data); CeedChkBackend(ierr); 68 return CEED_ERROR_SUCCESS; 69 } 70 71 //------------------------------------------------------------------------------ 72