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Diffstat (limited to 'intern/cycles/integrator/work_balancer.h')
-rw-r--r-- | intern/cycles/integrator/work_balancer.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/intern/cycles/integrator/work_balancer.h b/intern/cycles/integrator/work_balancer.h new file mode 100644 index 00000000000..94e20ecf054 --- /dev/null +++ b/intern/cycles/integrator/work_balancer.h @@ -0,0 +1,42 @@ +/* + * Copyright 2011-2021 Blender Foundation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#pragma once + +#include "util/util_vector.h" + +CCL_NAMESPACE_BEGIN + +struct WorkBalanceInfo { + /* Time spent performing corresponding work. */ + double time_spent = 0; + + /* Average occupancy of the device while performing the work. */ + float occupancy = 1.0f; + + /* Normalized weight, which is ready to be used for work balancing (like calculating fraction of + * the big tile which is to be rendered on the device). */ + double weight = 1.0; +}; + +/* Balance work for an initial render interation, before any statistics is known. */ +void work_balance_do_initial(vector<WorkBalanceInfo> &work_balance_infos); + +/* Rebalance work after statistics has been accumulated. + * Returns true if the balancing did change. */ +bool work_balance_do_rebalance(vector<WorkBalanceInfo> &work_balance_infos); + +CCL_NAMESPACE_END |