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[20.0] Update the requested memory size in reused blocks #51742

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[20.0] Update the requested memory size in reused blocks #51742

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4 changes: 3 additions & 1 deletion HeterogeneousCore/AlpakaInterface/interface/CachingAllocator.h
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Original file line number Diff line number Diff line change
Expand Up @@ -376,11 +376,13 @@ namespace cms::alpakatools {
for (auto iBlock = begin; iBlock != end; ++iBlock) {
if ((reuseSameQueueAllocations_ and (*block.queue == *(iBlock->second.queue))) or
alpaka::isComplete(*(iBlock->second.event))) {
// associate the cached buffer to the new queue
// associate the cached buffer to the new queue and update the requested size
auto queue = std::move(*(block.queue));
auto requested = block.requested;
// TODO cache (or remove) the debug information and use std::move()
block = iBlock->second;
block.queue = std::move(queue);
block.requested = requested;

// if the new queue is on different device than the old event, create a new event
if (block.device() != alpaka::getDev(*(block.event))) {
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