cd0ea03e6f
Summary: We carried a lot of unused and untested code in the device runtime. Among other reasons, we are planning major rewrites for which reduced size is going to help a lot. The number of code lines reduced by 14%! Before: ------------------------------------------------------------------------------- Language files blank comment code ------------------------------------------------------------------------------- CUDA 13 489 841 2454 C/C++ Header 14 322 493 1377 C 12 117 124 559 CMake 4 64 64 262 C++ 1 6 6 39 ------------------------------------------------------------------------------- SUM: 44 998 1528 4691 ------------------------------------------------------------------------------- After: ------------------------------------------------------------------------------- Language files blank comment code ------------------------------------------------------------------------------- CUDA 13 366 733 1879 C/C++ Header 14 317 484 1293 C 12 117 124 559 CMake 4 64 64 262 C++ 1 6 6 39 ------------------------------------------------------------------------------- SUM: 44 870 1411 4032 ------------------------------------------------------------------------------- Reviewers: hfinkel, jhuber6, fghanim, JonChesterfield, grokos, AndreyChurbanov, ye-luo, tianshilei1992, ggeorgakoudis, Hahnfeld, ABataev, hbae, ronlieb, gregrodgers Subscribers: jvesely, yaxunl, bollu, guansong, jfb, sstefan1, aaron.ballman, openmp-commits, cfe-commits Tags: #clang, #openmp Differential Revision: https://reviews.llvm.org/D83349
99 lines
3.7 KiB
C
99 lines
3.7 KiB
C
//===--------- support.h - OpenMP GPU support functions ---------- CUDA -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Wrapper to some functions natively supported by the GPU.
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//
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//===----------------------------------------------------------------------===//
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#ifndef OMPTARGET_SUPPORT_H
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#define OMPTARGET_SUPPORT_H
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#include "interface.h"
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#include "target_impl.h"
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////////////////////////////////////////////////////////////////////////////////
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// Execution Parameters
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////////////////////////////////////////////////////////////////////////////////
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enum ExecutionMode {
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Spmd = 0x00u,
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Generic = 0x01u,
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ModeMask = 0x01u,
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};
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enum RuntimeMode {
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RuntimeInitialized = 0x00u,
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RuntimeUninitialized = 0x02u,
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RuntimeMask = 0x02u,
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};
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DEVICE void setExecutionParameters(ExecutionMode EMode, RuntimeMode RMode);
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DEVICE bool isGenericMode();
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DEVICE bool isSPMDMode();
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DEVICE bool isRuntimeUninitialized();
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DEVICE bool isRuntimeInitialized();
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////////////////////////////////////////////////////////////////////////////////
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// Execution Modes based on location parameter fields
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////////////////////////////////////////////////////////////////////////////////
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DEVICE bool checkSPMDMode(kmp_Ident *loc);
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DEVICE bool checkGenericMode(kmp_Ident *loc);
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DEVICE bool checkRuntimeUninitialized(kmp_Ident *loc);
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DEVICE bool checkRuntimeInitialized(kmp_Ident *loc);
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////////////////////////////////////////////////////////////////////////////////
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// get info from machine
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////////////////////////////////////////////////////////////////////////////////
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// get global ids to locate tread/team info (constant regardless of OMP)
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DEVICE int GetLogicalThreadIdInBlock(bool isSPMDExecutionMode);
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DEVICE int GetMasterThreadID();
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DEVICE int GetNumberOfWorkersInTeam();
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// get OpenMP thread and team ids
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DEVICE int GetOmpThreadId(int threadId,
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bool isSPMDExecutionMode); // omp_thread_num
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DEVICE int GetOmpTeamId(); // omp_team_num
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// get OpenMP number of threads and team
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DEVICE int GetNumberOfOmpThreads(bool isSPMDExecutionMode); // omp_num_threads
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DEVICE int GetNumberOfOmpTeams(); // omp_num_teams
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// get OpenMP number of procs
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DEVICE int GetNumberOfProcsInTeam(bool isSPMDExecutionMode);
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DEVICE int GetNumberOfProcsInDevice(bool isSPMDExecutionMode);
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// masters
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DEVICE int IsTeamMaster(int ompThreadId);
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// Parallel level
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DEVICE void IncParallelLevel(bool ActiveParallel, __kmpc_impl_lanemask_t Mask);
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DEVICE void DecParallelLevel(bool ActiveParallel, __kmpc_impl_lanemask_t Mask);
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////////////////////////////////////////////////////////////////////////////////
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// Memory
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////////////////////////////////////////////////////////////////////////////////
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// safe alloc and free
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DEVICE void *SafeMalloc(size_t size, const char *msg); // check if success
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DEVICE void *SafeFree(void *ptr, const char *msg);
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// pad to a alignment (power of 2 only)
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DEVICE unsigned long PadBytes(unsigned long size, unsigned long alignment);
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#define ADD_BYTES(_addr, _bytes) \
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((void *)((char *)((void *)(_addr)) + (_bytes)))
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#define SUB_BYTES(_addr, _bytes) \
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((void *)((char *)((void *)(_addr)) - (_bytes)))
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////////////////////////////////////////////////////////////////////////////////
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// Teams Reduction Scratchpad Helpers
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////////////////////////////////////////////////////////////////////////////////
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DEVICE unsigned int *GetTeamsReductionTimestamp();
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DEVICE char *GetTeamsReductionScratchpad();
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#endif
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