diff options
Diffstat (limited to 'src/runtime/CL')
| -rw-r--r-- | src/runtime/CL/CLScheduler.cpp | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/runtime/CL/CLScheduler.cpp b/src/runtime/CL/CLScheduler.cpp index 49fb724cdb..b7a4dff45d 100644 --- a/src/runtime/CL/CLScheduler.cpp +++ b/src/runtime/CL/CLScheduler.cpp @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016-2022 Arm Limited. + * Copyright (c) 2016-2023 Arm Limited. * * SPDX-License-Identifier: MIT * @@ -95,8 +95,8 @@ bool CLScheduler::is_initialised() const std::once_flag CLScheduler::_initialize_symbols; CLScheduler::CLScheduler() - : _context(), _queue(), _target(GPUTarget::MIDGARD), _is_initialised(false), _cl_tuner(nullptr), _gemm_heuristics(nullptr), _backend_type(CLBackendType::Native), _job_chaining_enabled(false), - _job_chaining_size(), _job_chaining_count(0) + : _context(), _queue(), _target(GPUTarget::MIDGARD), _is_initialised(false), _cl_tuner(nullptr), _gemm_heuristics(nullptr), _backend_type(CLBackendType::Native), _job_chaining_enabled(true), + _job_chaining_size(1), _job_chaining_count(0) { } @@ -193,6 +193,16 @@ void CLScheduler::flush_queue(bool flush) if(_job_chaining_count >= _job_chaining_size) { _job_chaining_count = 0; + /* + Optimisation note: Flush the queue at the first enqueue to start the GPU + execution and then incrementally saturate the clFlush calls to minimize + the CPU activity for job-scheduling. + For eg. job-chain size goes from 1, 2, 4, 8 and 16 + */ + if(_job_chaining_size < 16) + { + _job_chaining_size <<= 1; + } _queue.flush(); } } |