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Revert "[GPU] Fix GPU DynamicQuantize batch consistency (#36078)"#36927

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p-durandin merged 1 commit into
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allnes:revert-36078-gpu-dynquant
Jul 17, 2026
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Revert "[GPU] Fix GPU DynamicQuantize batch consistency (#36078)"#36927
p-durandin merged 1 commit into
openvinotoolkit:masterfrom
allnes:revert-36078-gpu-dynquant

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@allnes allnes commented Jul 16, 2026

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Reverts #36078.

#36078 narrowed the runtime skip of DynamicQuantize in front of FullyConnected. On discrete GPU the FC runs through oneDNN, which then consumes the i8 activation on every token instead of the previous f16 path. This caused a decode throughput regression on discrete GPUs (~+57% 2nd-token latency on Arc A770 for 4-bit LLMs, reported on multiple platforms/models). Integrated GPU was unaffected.

Reverting to restore the previous behavior while a targeted fix is worked out.

…kit#36078)"

This reverts commit 66b9c8e.

openvinotoolkit#36078 narrowed the runtime skip of DynamicQuantize in front of
FullyConnected. On discrete GPU the FC runs through oneDNN, which then
consumes the i8 activation on every token instead of the previous f16
path, causing a decode throughput regression (~+57% 2nd-token latency on
Arc A770 for 4-bit LLMs). Integrated GPU was unaffected.
@allnes
allnes requested review from a team as code owners July 16, 2026 16:59
@github-actions github-actions Bot added the category: GPU OpenVINO GPU plugin label Jul 16, 2026

@p-durandin p-durandin left a comment

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Approved as revert

@p-durandin p-durandin added this to the 2026.4 milestone Jul 17, 2026
@p-durandin
p-durandin added this pull request to the merge queue Jul 17, 2026
Merged via the queue into openvinotoolkit:master with commit 08e9f74 Jul 17, 2026
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4 participants