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[SYCL] Fix barrier submission after command which bypasses the scheduler #15697

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Oct 15, 2024
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[SYCL] Fix barrier submission after command which bypasses the scheduler #15697

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1 change: 1 addition & 0 deletions sycl/source/detail/queue_impl.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -455,6 +455,7 @@ event queue_impl::submitMemOpHelper(const std::shared_ptr<queue_impl> &Self,
MemOpFunc(MemOpArgs..., getUrEvents(ExpandedDepEvents), &UREvent,
EventImpl);
EventImpl->setHandle(UREvent);
EventImpl->setEnqueued();
}

if (isInOrder()) {
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31 changes: 31 additions & 0 deletions sycl/unittests/scheduler/InOrderQueueDeps.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@

#include <helpers/TestKernel.hpp>
#include <helpers/UrMock.hpp>
#include <sycl/usm.hpp>

#include <iostream>
#include <memory>
Expand Down Expand Up @@ -189,4 +190,34 @@ TEST_F(SchedulerTest, InOrderQueueNoSchedulerPath) {
EXPECT_EQ(KernelEventListSize[1] /*EventsCount*/, 0u);
}

// Test that barrier is not filtered out when waitlist contains an event
// produced by command which is bypassing the scheduler.
TEST_F(SchedulerTest, BypassSchedulerWithBarrier) {
sycl::unittest::UrMock<> Mock;
sycl::platform Plt = sycl::platform();

mock::getCallbacks().set_before_callback(
"urEnqueueEventsWaitWithBarrier", &redefinedEnqueueEventsWaitWithBarrier);
BarrierCalled = false;

context Ctx{Plt};
queue Q1{Ctx, default_selector_v, property::queue::in_order()};
queue Q2{Ctx, default_selector_v, property::queue::in_order()};
static constexpr size_t Size = 10;

int *X = malloc_host<int>(Size, Ctx);

// Submit a command which bypasses the scheduler.
auto FillEvent = Q2.memset(X, 0, sizeof(int) * Size);
// Submit a barrier which depends on that event.
ExpectedEvent = detail::getSyclObjImpl(FillEvent)->getHandle();
auto BarrierQ1 = Q1.ext_oneapi_submit_barrier({FillEvent});
Q1.wait();
Q2.wait();
// Verify that barrier is not filtered out.
EXPECT_EQ(BarrierCalled, true);

free(X, Ctx);
}

} // anonymous namespace
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