1 // Copyright (c) 2017-2024, 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.h> 9 #include <ceed/backend.h> 10 #include <ceed/jit-tools.h> 11 #include <stdbool.h> 12 #include <stddef.h> 13 #include <string.h> 14 #include <hip/hip_runtime.h> 15 16 #include "../hip/ceed-hip-common.h" 17 #include "../hip/ceed-hip-compile.h" 18 #include "ceed-hip-shared.h" 19 20 //------------------------------------------------------------------------------ 21 // Compute a block size based on required minimum threads 22 //------------------------------------------------------------------------------ 23 static CeedInt ComputeBlockSizeFromRequirement(const CeedInt required) { 24 CeedInt maxSize = 1024; // Max total threads per block 25 CeedInt currentSize = 64; // Start with one group 26 27 while (currentSize < maxSize) { 28 if (currentSize > required) break; 29 else currentSize = currentSize * 2; 30 } 31 return currentSize; 32 } 33 34 //------------------------------------------------------------------------------ 35 // Compute required thread block sizes for basis kernels given P, Q, dim, and 36 // num_comp (num_comp not currently used, but may be again in other basis 37 // parallelization options) 38 //------------------------------------------------------------------------------ 39 static int ComputeBasisThreadBlockSizes(const CeedInt dim, const CeedInt P_1d, const CeedInt Q_1d, const CeedInt num_comp, CeedInt *block_sizes) { 40 // Note that this will use the same block sizes for all dimensions when compiling, 41 // but as each basis object is defined for a particular dimension, we will never 42 // call any kernels except the ones for the dimension for which we have computed the 43 // block sizes. 44 const CeedInt thread_1d = CeedIntMax(P_1d, Q_1d); 45 46 switch (dim) { 47 case 1: { 48 // Interp kernels: 49 block_sizes[0] = 256; 50 51 // Grad kernels: 52 block_sizes[1] = 256; 53 54 // Weight kernels: 55 block_sizes[2] = 256; 56 } break; 57 case 2: { 58 // Interp kernels: 59 CeedInt required = thread_1d * thread_1d; 60 61 block_sizes[0] = CeedIntMax(256, ComputeBlockSizeFromRequirement(required)); 62 63 // Grad kernels: currently use same required minimum threads 64 block_sizes[1] = CeedIntMax(256, ComputeBlockSizeFromRequirement(required)); 65 66 // Weight kernels: 67 required = CeedIntMax(64, Q_1d * Q_1d); 68 block_sizes[2] = CeedIntMax(256, ComputeBlockSizeFromRequirement(required)); 69 70 } break; 71 case 3: { 72 // Interp kernels: 73 CeedInt required = thread_1d * thread_1d; 74 75 block_sizes[0] = CeedIntMax(256, ComputeBlockSizeFromRequirement(required)); 76 77 // Grad kernels: currently use same required minimum threads 78 block_sizes[1] = CeedIntMax(256, ComputeBlockSizeFromRequirement(required)); 79 80 // Weight kernels: 81 required = Q_1d * Q_1d * Q_1d; 82 block_sizes[2] = CeedIntMax(256, ComputeBlockSizeFromRequirement(required)); 83 } 84 } 85 return CEED_ERROR_SUCCESS; 86 } 87 88 //------------------------------------------------------------------------------ 89 // Apply basis 90 //------------------------------------------------------------------------------ 91 static int CeedBasisApplyTensorCore_Hip_shared(CeedBasis basis, bool apply_add, const CeedInt num_elem, CeedTransposeMode t_mode, 92 CeedEvalMode eval_mode, CeedVector u, CeedVector v) { 93 Ceed ceed; 94 Ceed_Hip *ceed_Hip; 95 CeedInt dim, num_comp; 96 const CeedScalar *d_u; 97 CeedScalar *d_v; 98 CeedBasis_Hip_shared *data; 99 100 CeedCallBackend(CeedBasisGetCeed(basis, &ceed)); 101 CeedCallBackend(CeedGetData(ceed, &ceed_Hip)); 102 CeedCallBackend(CeedBasisGetData(basis, &data)); 103 CeedCallBackend(CeedBasisGetDimension(basis, &dim)); 104 CeedCallBackend(CeedBasisGetNumComponents(basis, &num_comp)); 105 106 // Get read/write access to u, v 107 if (u != CEED_VECTOR_NONE) CeedCallBackend(CeedVectorGetArrayRead(u, CEED_MEM_DEVICE, &d_u)); 108 else CeedCheck(eval_mode == CEED_EVAL_WEIGHT, ceed, CEED_ERROR_BACKEND, "An input vector is required for this CeedEvalMode"); 109 if (apply_add) CeedCallBackend(CeedVectorGetArray(v, CEED_MEM_DEVICE, &d_v)); 110 else CeedCallBackend(CeedVectorGetArrayWrite(v, CEED_MEM_DEVICE, &d_v)); 111 112 // Apply basis operation 113 switch (eval_mode) { 114 case CEED_EVAL_INTERP: { 115 CeedInt P_1d, Q_1d; 116 CeedInt block_size = data->block_sizes[0]; 117 118 CeedCallBackend(CeedBasisGetNumNodes1D(basis, &P_1d)); 119 CeedCallBackend(CeedBasisGetNumQuadraturePoints1D(basis, &Q_1d)); 120 CeedInt thread_1d = CeedIntMax(Q_1d, P_1d); 121 void *interp_args[] = {(void *)&num_elem, &data->d_interp_1d, &d_u, &d_v}; 122 123 if (dim == 1) { 124 CeedInt elems_per_block = 64 * thread_1d > 256 ? 256 / thread_1d : 64; 125 elems_per_block = elems_per_block > 0 ? elems_per_block : 1; 126 CeedInt grid = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 127 CeedInt shared_mem = elems_per_block * thread_1d * sizeof(CeedScalar); 128 129 if (t_mode == CEED_TRANSPOSE) { 130 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, apply_add ? data->InterpTransposeAdd : data->InterpTranspose, grid, thread_1d, 1, 131 elems_per_block, shared_mem, interp_args)); 132 } else { 133 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, data->Interp, grid, thread_1d, 1, elems_per_block, shared_mem, interp_args)); 134 } 135 } else if (dim == 2) { 136 // Check if required threads is small enough to do multiple elems 137 const CeedInt elems_per_block = CeedIntMax(block_size / (thread_1d * thread_1d), 1); 138 CeedInt grid = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 139 CeedInt shared_mem = elems_per_block * thread_1d * thread_1d * sizeof(CeedScalar); 140 141 if (t_mode == CEED_TRANSPOSE) { 142 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, apply_add ? data->InterpTransposeAdd : data->InterpTranspose, grid, thread_1d, thread_1d, 143 elems_per_block, shared_mem, interp_args)); 144 } else { 145 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, data->Interp, grid, thread_1d, thread_1d, elems_per_block, shared_mem, interp_args)); 146 } 147 } else if (dim == 3) { 148 const CeedInt elems_per_block = CeedIntMax(block_size / (thread_1d * thread_1d), 1); 149 CeedInt grid = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 150 CeedInt shared_mem = elems_per_block * thread_1d * thread_1d * sizeof(CeedScalar); 151 152 if (t_mode == CEED_TRANSPOSE) { 153 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, apply_add ? data->InterpTransposeAdd : data->InterpTranspose, grid, thread_1d, thread_1d, 154 elems_per_block, shared_mem, interp_args)); 155 } else { 156 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, data->Interp, grid, thread_1d, thread_1d, elems_per_block, shared_mem, interp_args)); 157 } 158 } 159 } break; 160 case CEED_EVAL_GRAD: { 161 CeedInt P_1d, Q_1d; 162 CeedInt block_size = data->block_sizes[1]; 163 164 CeedCallBackend(CeedBasisGetNumNodes1D(basis, &P_1d)); 165 CeedCallBackend(CeedBasisGetNumQuadraturePoints1D(basis, &Q_1d)); 166 CeedInt thread_1d = CeedIntMax(Q_1d, P_1d); 167 CeedScalar *d_grad_1d = data->d_grad_1d; 168 169 if (data->d_collo_grad_1d) { 170 d_grad_1d = data->d_collo_grad_1d; 171 } 172 void *grad_args[] = {(void *)&num_elem, &data->d_interp_1d, &d_grad_1d, &d_u, &d_v}; 173 174 if (dim == 1) { 175 CeedInt elems_per_block = 64 * thread_1d > 256 ? 256 / thread_1d : 64; 176 elems_per_block = elems_per_block > 0 ? elems_per_block : 1; 177 CeedInt grid = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 178 CeedInt shared_mem = elems_per_block * thread_1d * sizeof(CeedScalar); 179 180 if (t_mode == CEED_TRANSPOSE) { 181 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, apply_add ? data->GradTransposeAdd : data->GradTranspose, grid, thread_1d, 1, 182 elems_per_block, shared_mem, grad_args)); 183 } else { 184 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, data->Grad, grid, thread_1d, 1, elems_per_block, shared_mem, grad_args)); 185 } 186 } else if (dim == 2) { 187 // Check if required threads is small enough to do multiple elems 188 const CeedInt elems_per_block = CeedIntMax(block_size / (thread_1d * thread_1d), 1); 189 CeedInt grid = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 190 CeedInt shared_mem = elems_per_block * thread_1d * thread_1d * sizeof(CeedScalar); 191 192 if (t_mode == CEED_TRANSPOSE) { 193 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, apply_add ? data->GradTransposeAdd : data->GradTranspose, grid, thread_1d, thread_1d, 194 elems_per_block, shared_mem, grad_args)); 195 } else { 196 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, data->Grad, grid, thread_1d, thread_1d, elems_per_block, shared_mem, grad_args)); 197 } 198 } else if (dim == 3) { 199 const CeedInt elems_per_block = CeedIntMax(block_size / (thread_1d * thread_1d), 1); 200 CeedInt grid = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 201 CeedInt shared_mem = elems_per_block * thread_1d * thread_1d * sizeof(CeedScalar); 202 203 if (t_mode == CEED_TRANSPOSE) { 204 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, apply_add ? data->GradTransposeAdd : data->GradTranspose, grid, thread_1d, thread_1d, 205 elems_per_block, shared_mem, grad_args)); 206 } else { 207 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, data->Grad, grid, thread_1d, thread_1d, elems_per_block, shared_mem, grad_args)); 208 } 209 } 210 } break; 211 case CEED_EVAL_WEIGHT: { 212 CeedInt Q_1d; 213 CeedInt block_size = data->block_sizes[2]; 214 215 CeedCheck(data->d_q_weight_1d, ceed, CEED_ERROR_BACKEND, "%s not supported; q_weights_1d not set", CeedEvalModes[eval_mode]); 216 CeedCallBackend(CeedBasisGetNumQuadraturePoints1D(basis, &Q_1d)); 217 void *weight_args[] = {(void *)&num_elem, (void *)&data->d_q_weight_1d, &d_v}; 218 219 if (dim == 1) { 220 const CeedInt opt_elems = block_size / Q_1d; 221 const CeedInt elems_per_block = opt_elems > 0 ? opt_elems : 1; 222 const CeedInt grid_size = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 223 224 CeedCallBackend(CeedRunKernelDim_Hip(ceed, data->Weight, grid_size, Q_1d, elems_per_block, 1, weight_args)); 225 } else if (dim == 2) { 226 const CeedInt opt_elems = block_size / (Q_1d * Q_1d); 227 const CeedInt elems_per_block = opt_elems > 0 ? opt_elems : 1; 228 const CeedInt grid_size = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 229 230 CeedCallBackend(CeedRunKernelDim_Hip(ceed, data->Weight, grid_size, Q_1d, Q_1d, elems_per_block, weight_args)); 231 } else if (dim == 3) { 232 const CeedInt opt_elems = block_size / (Q_1d * Q_1d); 233 const CeedInt elems_per_block = opt_elems > 0 ? opt_elems : 1; 234 const CeedInt grid_size = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 235 236 CeedCallBackend(CeedRunKernelDim_Hip(ceed, data->Weight, grid_size, Q_1d, Q_1d, elems_per_block, weight_args)); 237 } 238 } break; 239 case CEED_EVAL_NONE: /* handled separately below */ 240 break; 241 // LCOV_EXCL_START 242 case CEED_EVAL_DIV: 243 case CEED_EVAL_CURL: 244 return CeedError(ceed, CEED_ERROR_BACKEND, "%s not supported", CeedEvalModes[eval_mode]); 245 // LCOV_EXCL_STOP 246 } 247 248 // Restore vectors, cover CEED_EVAL_NONE 249 CeedCallBackend(CeedVectorRestoreArray(v, &d_v)); 250 if (eval_mode == CEED_EVAL_NONE) CeedCallBackend(CeedVectorSetArray(v, CEED_MEM_DEVICE, CEED_COPY_VALUES, (CeedScalar *)d_u)); 251 if (eval_mode != CEED_EVAL_WEIGHT) CeedCallBackend(CeedVectorRestoreArrayRead(u, &d_u)); 252 CeedCallBackend(CeedDestroy(&ceed)); 253 return CEED_ERROR_SUCCESS; 254 } 255 256 int CeedBasisApplyTensor_Hip_shared(CeedBasis basis, const CeedInt num_elem, CeedTransposeMode t_mode, CeedEvalMode eval_mode, CeedVector u, 257 CeedVector v) { 258 CeedCallBackend(CeedBasisApplyTensorCore_Hip_shared(basis, false, num_elem, t_mode, eval_mode, u, v)); 259 return CEED_ERROR_SUCCESS; 260 } 261 262 int CeedBasisApplyAddTensor_Hip_shared(CeedBasis basis, const CeedInt num_elem, CeedTransposeMode t_mode, CeedEvalMode eval_mode, CeedVector u, 263 CeedVector v) { 264 CeedCallBackend(CeedBasisApplyTensorCore_Hip_shared(basis, true, num_elem, t_mode, eval_mode, u, v)); 265 return CEED_ERROR_SUCCESS; 266 } 267 268 //------------------------------------------------------------------------------ 269 // Basis apply - tensor AtPoints 270 //------------------------------------------------------------------------------ 271 static int CeedBasisApplyAtPointsCore_Hip_shared(CeedBasis basis, bool apply_add, const CeedInt num_elem, const CeedInt *num_points, 272 CeedTransposeMode t_mode, CeedEvalMode eval_mode, CeedVector x_ref, CeedVector u, CeedVector v) { 273 Ceed ceed; 274 CeedInt Q_1d, dim, max_num_points = num_points[0]; 275 const CeedInt is_transpose = t_mode == CEED_TRANSPOSE; 276 const CeedScalar *d_x, *d_u; 277 CeedScalar *d_v; 278 CeedBasis_Hip_shared *data; 279 280 CeedCallBackend(CeedBasisGetData(basis, &data)); 281 CeedCallBackend(CeedBasisGetNumQuadraturePoints1D(basis, &Q_1d)); 282 CeedCallBackend(CeedBasisGetDimension(basis, &dim)); 283 284 // Weight handled separately 285 if (eval_mode == CEED_EVAL_WEIGHT) { 286 CeedCallBackend(CeedVectorSetValue(v, 1.0)); 287 return CEED_ERROR_SUCCESS; 288 } 289 290 CeedCallBackend(CeedBasisGetCeed(basis, &ceed)); 291 292 // Check padded to uniform number of points per elem 293 for (CeedInt i = 1; i < num_elem; i++) max_num_points = CeedIntMax(max_num_points, num_points[i]); 294 { 295 CeedInt num_comp, q_comp; 296 CeedSize len, len_required; 297 298 CeedCallBackend(CeedBasisGetNumComponents(basis, &num_comp)); 299 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis, eval_mode, &q_comp)); 300 CeedCallBackend(CeedVectorGetLength(is_transpose ? u : v, &len)); 301 len_required = (CeedSize)num_comp * (CeedSize)q_comp * (CeedSize)num_elem * (CeedSize)max_num_points; 302 CeedCheck(len >= len_required, ceed, CEED_ERROR_BACKEND, 303 "Vector at points must be padded to the same number of points in each element for BasisApplyAtPoints on GPU backends." 304 " Found %" CeedSize_FMT ", Required %" CeedSize_FMT, 305 len, len_required); 306 } 307 308 // Move num_points array to device 309 if (is_transpose) { 310 const CeedInt num_bytes = num_elem * sizeof(CeedInt); 311 312 if (num_elem != data->num_elem_at_points) { 313 data->num_elem_at_points = num_elem; 314 315 if (data->d_points_per_elem) CeedCallHip(ceed, hipFree(data->d_points_per_elem)); 316 CeedCallHip(ceed, hipMalloc((void **)&data->d_points_per_elem, num_bytes)); 317 CeedCallBackend(CeedFree(&data->h_points_per_elem)); 318 CeedCallBackend(CeedCalloc(num_elem, &data->h_points_per_elem)); 319 } 320 if (memcmp(data->h_points_per_elem, num_points, num_bytes)) { 321 memcpy(data->h_points_per_elem, num_points, num_bytes); 322 CeedCallHip(ceed, hipMemcpy(data->d_points_per_elem, num_points, num_bytes, hipMemcpyHostToDevice)); 323 } 324 } 325 326 // Build kernels if needed 327 if (data->num_points != max_num_points) { 328 CeedInt P_1d; 329 330 CeedCallBackend(CeedBasisGetNumNodes1D(basis, &P_1d)); 331 data->num_points = max_num_points; 332 333 // -- Create interp matrix to Chebyshev coefficients 334 if (!data->d_chebyshev_interp_1d) { 335 CeedSize interp_bytes; 336 CeedScalar *chebyshev_interp_1d; 337 338 interp_bytes = P_1d * Q_1d * sizeof(CeedScalar); 339 CeedCallBackend(CeedCalloc(P_1d * Q_1d, &chebyshev_interp_1d)); 340 CeedCallBackend(CeedBasisGetChebyshevInterp1D(basis, chebyshev_interp_1d)); 341 CeedCallHip(ceed, hipMalloc((void **)&data->d_chebyshev_interp_1d, interp_bytes)); 342 CeedCallHip(ceed, hipMemcpy(data->d_chebyshev_interp_1d, chebyshev_interp_1d, interp_bytes, hipMemcpyHostToDevice)); 343 CeedCallBackend(CeedFree(&chebyshev_interp_1d)); 344 } 345 346 // -- Compile kernels 347 const char basis_kernel_source[] = "// AtPoints basis source\n#include <ceed/jit-source/hip/hip-shared-basis-tensor-at-points.h>\n"; 348 CeedInt num_comp; 349 350 if (data->moduleAtPoints) CeedCallHip(ceed, hipModuleUnload(data->moduleAtPoints)); 351 CeedCallBackend(CeedBasisGetNumComponents(basis, &num_comp)); 352 CeedCallBackend(CeedCompile_Hip(ceed, basis_kernel_source, &data->moduleAtPoints, 9, "BASIS_Q_1D", Q_1d, "BASIS_P_1D", P_1d, "T_1D", 353 CeedIntMax(Q_1d, P_1d), "BASIS_DIM", dim, "BASIS_NUM_COMP", num_comp, "BASIS_NUM_NODES", CeedIntPow(P_1d, dim), 354 "BASIS_NUM_QPTS", CeedIntPow(Q_1d, dim), "BASIS_NUM_PTS", max_num_points, "BASIS_INTERP_BLOCK_SIZE", 355 data->block_sizes[0])); 356 CeedCallBackend(CeedGetKernel_Hip(ceed, data->moduleAtPoints, "InterpAtPoints", &data->InterpAtPoints)); 357 CeedCallBackend(CeedGetKernel_Hip(ceed, data->moduleAtPoints, "InterpTransposeAtPoints", &data->InterpTransposeAtPoints)); 358 CeedCallBackend(CeedGetKernel_Hip(ceed, data->moduleAtPoints, "GradAtPoints", &data->GradAtPoints)); 359 CeedCallBackend(CeedGetKernel_Hip(ceed, data->moduleAtPoints, "GradTransposeAtPoints", &data->GradTransposeAtPoints)); 360 } 361 362 // Get read/write access to u, v 363 CeedCallBackend(CeedVectorGetArrayRead(x_ref, CEED_MEM_DEVICE, &d_x)); 364 if (u != CEED_VECTOR_NONE) CeedCallBackend(CeedVectorGetArrayRead(u, CEED_MEM_DEVICE, &d_u)); 365 else CeedCheck(eval_mode == CEED_EVAL_WEIGHT, ceed, CEED_ERROR_BACKEND, "An input vector is required for this CeedEvalMode"); 366 if (apply_add) CeedCallBackend(CeedVectorGetArray(v, CEED_MEM_DEVICE, &d_v)); 367 else CeedCallBackend(CeedVectorGetArrayWrite(v, CEED_MEM_DEVICE, &d_v)); 368 369 // Clear v for transpose operation 370 if (is_transpose && !apply_add) { 371 CeedInt num_comp, q_comp, num_nodes; 372 CeedSize length; 373 374 CeedCallBackend(CeedBasisGetNumComponents(basis, &num_comp)); 375 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis, eval_mode, &q_comp)); 376 CeedCallBackend(CeedBasisGetNumNodes(basis, &num_nodes)); 377 length = 378 (CeedSize)num_elem * (CeedSize)num_comp * (t_mode == CEED_TRANSPOSE ? (CeedSize)num_nodes : ((CeedSize)max_num_points * (CeedSize)q_comp)); 379 CeedCallHip(ceed, hipMemset(d_v, 0, length * sizeof(CeedScalar))); 380 } 381 382 // Basis action 383 switch (eval_mode) { 384 case CEED_EVAL_INTERP: { 385 CeedInt P_1d, Q_1d; 386 CeedInt block_size = data->block_sizes[0]; 387 388 CeedCallBackend(CeedBasisGetNumNodes1D(basis, &P_1d)); 389 CeedCallBackend(CeedBasisGetNumQuadraturePoints1D(basis, &Q_1d)); 390 CeedInt thread_1d = CeedIntMax(Q_1d, P_1d); 391 void *interp_args[] = {(void *)&num_elem, &data->d_chebyshev_interp_1d, &data->d_points_per_elem, &d_x, &d_u, &d_v}; 392 393 if (dim == 1) { 394 CeedInt elems_per_block = 64 * thread_1d > 256 ? 256 / thread_1d : 64; 395 elems_per_block = elems_per_block > 0 ? elems_per_block : 1; 396 CeedInt grid = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 397 CeedInt shared_mem = elems_per_block * thread_1d * sizeof(CeedScalar); 398 399 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, is_transpose ? data->InterpTransposeAtPoints : data->InterpAtPoints, grid, thread_1d, 1, 400 elems_per_block, shared_mem, interp_args)); 401 } else if (dim == 2) { 402 // Check if required threads is small enough to do multiple elems 403 const CeedInt elems_per_block = CeedIntMax(block_size / (thread_1d * thread_1d), 1); 404 CeedInt grid = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 405 CeedInt shared_mem = elems_per_block * thread_1d * thread_1d * sizeof(CeedScalar); 406 407 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, is_transpose ? data->InterpTransposeAtPoints : data->InterpAtPoints, grid, thread_1d, 408 thread_1d, elems_per_block, shared_mem, interp_args)); 409 } else if (dim == 3) { 410 const CeedInt elems_per_block = 1; 411 CeedInt grid = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 412 CeedInt shared_mem = elems_per_block * thread_1d * thread_1d * sizeof(CeedScalar); 413 414 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, is_transpose ? data->InterpTransposeAtPoints : data->InterpAtPoints, grid, thread_1d, 415 thread_1d, elems_per_block, shared_mem, interp_args)); 416 } 417 } break; 418 case CEED_EVAL_GRAD: { 419 CeedInt P_1d, Q_1d; 420 CeedInt block_size = data->block_sizes[0]; 421 422 CeedCallBackend(CeedBasisGetNumNodes1D(basis, &P_1d)); 423 CeedCallBackend(CeedBasisGetNumQuadraturePoints1D(basis, &Q_1d)); 424 CeedInt thread_1d = CeedIntMax(Q_1d, P_1d); 425 void *grad_args[] = {(void *)&num_elem, &data->d_chebyshev_interp_1d, &data->d_points_per_elem, &d_x, &d_u, &d_v}; 426 427 if (dim == 1) { 428 CeedInt elems_per_block = 64 * thread_1d > 256 ? 256 / thread_1d : 64; 429 elems_per_block = elems_per_block > 0 ? elems_per_block : 1; 430 CeedInt grid = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 431 CeedInt shared_mem = elems_per_block * thread_1d * sizeof(CeedScalar); 432 433 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, is_transpose ? data->GradTransposeAtPoints : data->GradAtPoints, grid, thread_1d, 1, 434 elems_per_block, shared_mem, grad_args)); 435 } else if (dim == 2) { 436 // Check if required threads is small enough to do multiple elems 437 const CeedInt elems_per_block = CeedIntMax(block_size / (thread_1d * thread_1d), 1); 438 CeedInt grid = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 439 CeedInt shared_mem = elems_per_block * thread_1d * thread_1d * sizeof(CeedScalar); 440 441 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, is_transpose ? data->GradTransposeAtPoints : data->GradAtPoints, grid, thread_1d, thread_1d, 442 elems_per_block, shared_mem, grad_args)); 443 } else if (dim == 3) { 444 const CeedInt elems_per_block = 1; 445 CeedInt grid = num_elem / elems_per_block + (num_elem % elems_per_block > 0); 446 CeedInt shared_mem = elems_per_block * thread_1d * thread_1d * sizeof(CeedScalar); 447 448 CeedCallBackend(CeedRunKernelDimShared_Hip(ceed, is_transpose ? data->GradTransposeAtPoints : data->GradAtPoints, grid, thread_1d, thread_1d, 449 elems_per_block, shared_mem, grad_args)); 450 } 451 } break; 452 case CEED_EVAL_WEIGHT: 453 case CEED_EVAL_NONE: /* handled separately below */ 454 break; 455 // LCOV_EXCL_START 456 case CEED_EVAL_DIV: 457 case CEED_EVAL_CURL: 458 return CeedError(ceed, CEED_ERROR_BACKEND, "%s not supported", CeedEvalModes[eval_mode]); 459 // LCOV_EXCL_STOP 460 } 461 462 // Restore vectors, cover CEED_EVAL_NONE 463 CeedCallBackend(CeedVectorRestoreArrayRead(x_ref, &d_x)); 464 CeedCallBackend(CeedVectorRestoreArray(v, &d_v)); 465 if (eval_mode == CEED_EVAL_NONE) CeedCallBackend(CeedVectorSetArray(v, CEED_MEM_DEVICE, CEED_COPY_VALUES, (CeedScalar *)d_u)); 466 if (eval_mode != CEED_EVAL_WEIGHT) CeedCallBackend(CeedVectorRestoreArrayRead(u, &d_u)); 467 return CEED_ERROR_SUCCESS; 468 } 469 470 static int CeedBasisApplyAtPoints_Hip_shared(CeedBasis basis, const CeedInt num_elem, const CeedInt *num_points, CeedTransposeMode t_mode, 471 CeedEvalMode eval_mode, CeedVector x_ref, CeedVector u, CeedVector v) { 472 CeedCallBackend(CeedBasisApplyAtPointsCore_Hip_shared(basis, false, num_elem, num_points, t_mode, eval_mode, x_ref, u, v)); 473 return CEED_ERROR_SUCCESS; 474 } 475 476 static int CeedBasisApplyAddAtPoints_Hip_shared(CeedBasis basis, const CeedInt num_elem, const CeedInt *num_points, CeedTransposeMode t_mode, 477 CeedEvalMode eval_mode, CeedVector x_ref, CeedVector u, CeedVector v) { 478 CeedCallBackend(CeedBasisApplyAtPointsCore_Hip_shared(basis, true, num_elem, num_points, t_mode, eval_mode, x_ref, u, v)); 479 return CEED_ERROR_SUCCESS; 480 } 481 482 //------------------------------------------------------------------------------ 483 // Destroy basis 484 //------------------------------------------------------------------------------ 485 static int CeedBasisDestroy_Hip_shared(CeedBasis basis) { 486 Ceed ceed; 487 CeedBasis_Hip_shared *data; 488 489 CeedCallBackend(CeedBasisGetCeed(basis, &ceed)); 490 CeedCallBackend(CeedBasisGetData(basis, &data)); 491 CeedCallHip(ceed, hipModuleUnload(data->module)); 492 if (data->moduleAtPoints) CeedCallHip(ceed, hipModuleUnload(data->moduleAtPoints)); 493 if (data->d_q_weight_1d) CeedCallHip(ceed, hipFree(data->d_q_weight_1d)); 494 CeedCallBackend(CeedFree(&data->h_points_per_elem)); 495 if (data->d_points_per_elem) CeedCallHip(ceed, hipFree(data->d_points_per_elem)); 496 CeedCallHip(ceed, hipFree(data->d_interp_1d)); 497 CeedCallHip(ceed, hipFree(data->d_grad_1d)); 498 CeedCallHip(ceed, hipFree(data->d_collo_grad_1d)); 499 CeedCallHip(ceed, hipFree(data->d_chebyshev_interp_1d)); 500 CeedCallBackend(CeedFree(&data)); 501 return CEED_ERROR_SUCCESS; 502 } 503 504 //------------------------------------------------------------------------------ 505 // Create tensor basis 506 //------------------------------------------------------------------------------ 507 int CeedBasisCreateTensorH1_Hip_shared(CeedInt dim, CeedInt P_1d, CeedInt Q_1d, const CeedScalar *interp_1d, const CeedScalar *grad_1d, 508 const CeedScalar *q_ref_1d, const CeedScalar *q_weight_1d, CeedBasis basis) { 509 Ceed ceed; 510 CeedInt num_comp; 511 const CeedInt q_bytes = Q_1d * sizeof(CeedScalar); 512 const CeedInt interp_bytes = q_bytes * P_1d; 513 CeedBasis_Hip_shared *data; 514 515 CeedCallBackend(CeedBasisGetCeed(basis, &ceed)); 516 CeedCallBackend(CeedCalloc(1, &data)); 517 518 // Copy basis data to GPU 519 if (q_weight_1d) { 520 CeedCallHip(ceed, hipMalloc((void **)&data->d_q_weight_1d, q_bytes)); 521 CeedCallHip(ceed, hipMemcpy(data->d_q_weight_1d, q_weight_1d, q_bytes, hipMemcpyHostToDevice)); 522 } 523 CeedCallHip(ceed, hipMalloc((void **)&data->d_interp_1d, interp_bytes)); 524 CeedCallHip(ceed, hipMemcpy(data->d_interp_1d, interp_1d, interp_bytes, hipMemcpyHostToDevice)); 525 CeedCallHip(ceed, hipMalloc((void **)&data->d_grad_1d, interp_bytes)); 526 CeedCallHip(ceed, hipMemcpy(data->d_grad_1d, grad_1d, interp_bytes, hipMemcpyHostToDevice)); 527 528 // Compute collocated gradient and copy to GPU 529 data->d_collo_grad_1d = NULL; 530 bool has_collocated_grad = dim == 3 && Q_1d >= P_1d; 531 532 if (has_collocated_grad) { 533 CeedScalar *collo_grad_1d; 534 535 CeedCallBackend(CeedMalloc(Q_1d * Q_1d, &collo_grad_1d)); 536 CeedCallBackend(CeedBasisGetCollocatedGrad(basis, collo_grad_1d)); 537 CeedCallHip(ceed, hipMalloc((void **)&data->d_collo_grad_1d, q_bytes * Q_1d)); 538 CeedCallHip(ceed, hipMemcpy(data->d_collo_grad_1d, collo_grad_1d, q_bytes * Q_1d, hipMemcpyHostToDevice)); 539 CeedCallBackend(CeedFree(&collo_grad_1d)); 540 } 541 542 // Set number of threads per block for basis kernels 543 CeedCallBackend(CeedBasisGetNumComponents(basis, &num_comp)); 544 CeedCallBackend(ComputeBasisThreadBlockSizes(dim, P_1d, Q_1d, num_comp, data->block_sizes)); 545 546 // Compile basis kernels 547 const char basis_kernel_source[] = "// Tensor basis source\n#include <ceed/jit-source/hip/hip-shared-basis-tensor.h>\n"; 548 549 CeedCallBackend(CeedCompile_Hip(ceed, basis_kernel_source, &data->module, 11, "BASIS_Q_1D", Q_1d, "BASIS_P_1D", P_1d, "T_1D", 550 CeedIntMax(Q_1d, P_1d), "BASIS_DIM", dim, "BASIS_NUM_COMP", num_comp, "BASIS_NUM_NODES", CeedIntPow(P_1d, dim), 551 "BASIS_NUM_QPTS", CeedIntPow(Q_1d, dim), "BASIS_INTERP_BLOCK_SIZE", data->block_sizes[0], "BASIS_GRAD_BLOCK_SIZE", 552 data->block_sizes[1], "BASIS_WEIGHT_BLOCK_SIZE", data->block_sizes[2], "BASIS_HAS_COLLOCATED_GRAD", 553 has_collocated_grad)); 554 CeedCallBackend(CeedGetKernel_Hip(ceed, data->module, "Interp", &data->Interp)); 555 CeedCallBackend(CeedGetKernel_Hip(ceed, data->module, "InterpTranspose", &data->InterpTranspose)); 556 CeedCallBackend(CeedGetKernel_Hip(ceed, data->module, "InterpTransposeAdd", &data->InterpTransposeAdd)); 557 CeedCallBackend(CeedGetKernel_Hip(ceed, data->module, "Grad", &data->Grad)); 558 CeedCallBackend(CeedGetKernel_Hip(ceed, data->module, "GradTranspose", &data->GradTranspose)); 559 CeedCallBackend(CeedGetKernel_Hip(ceed, data->module, "GradTransposeAdd", &data->GradTransposeAdd)); 560 CeedCallBackend(CeedGetKernel_Hip(ceed, data->module, "Weight", &data->Weight)); 561 562 CeedCallBackend(CeedBasisSetData(basis, data)); 563 564 // Register backend functions 565 CeedCallBackend(CeedSetBackendFunction(ceed, "Basis", basis, "Apply", CeedBasisApplyTensor_Hip_shared)); 566 CeedCallBackend(CeedSetBackendFunction(ceed, "Basis", basis, "ApplyAdd", CeedBasisApplyAddTensor_Hip_shared)); 567 CeedCallBackend(CeedSetBackendFunction(ceed, "Basis", basis, "ApplyAtPoints", CeedBasisApplyAtPoints_Hip_shared)); 568 CeedCallBackend(CeedSetBackendFunction(ceed, "Basis", basis, "ApplyAddAtPoints", CeedBasisApplyAddAtPoints_Hip_shared)); 569 CeedCallBackend(CeedSetBackendFunction(ceed, "Basis", basis, "Destroy", CeedBasisDestroy_Hip_shared)); 570 CeedCallBackend(CeedDestroy(&ceed)); 571 return CEED_ERROR_SUCCESS; 572 } 573 574 //------------------------------------------------------------------------------ 575