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gpueventsynchronizer_sycl.h File Reference
#include <optional>
#include "gromacs/gpu_utils/device_stream.h"
#include "gromacs/gpu_utils/gmxsycl.h"
#include "gromacs/utility/exceptions.h"
#include "gromacs/utility/gmxassert.h"
+ Include dependency graph for gpueventsynchronizer_sycl.h:

Description

Implements a GpuEventSynchronizer class for SYCL.

This implementation relies on SYCL_INTEL_enqueue_barrier proposal, https://github.com/intel/llvm/blob/sycl/sycl/doc/extensions/EnqueueBarrier/enqueue_barrier.asciidoc

Using event-based synchronization is not recommended for SYCL. SYCL queues are out-of-order and rely on data dependencies, allowing only to wait for a specific kernel (by capturing the event returned from queue.submit) or for all the tasks in the queue (queue.wait).

Author
Erik Lindahl erik..nosp@m.lind.nosp@m.ahl@g.nosp@m.mail.nosp@m..com
Andrey Alekseenko al42a.nosp@m.nd@g.nosp@m.mail..nosp@m.com