Add support for batched tasks. #668
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bosilca
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The idea is the following: - tasks incarnations (aka. BODY) can be marked with the "batch" property allowing the runtime to provide the task with the entire list of ready tasks of the execution stream instead of just extracting the head. - this list of ready tasks is in fact a ring, that can then be trimmed by the kernel and divided into batch and the rest. The rest of the tasks will be left in the ring, while the batch group will be submitted for execution. - the kernel also needs to provide a callback into the gpu_task complete_stage, such that the runtime can call the specialized function able to complete all batched tasks. Signed-off-by: George Bosilca <[email protected]>
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The idea is the following: