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Reduce the Vulkan interop buffer kernel workgroup size to 256 (#1828)

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Using `local_size_x = 512` in the shader used in the Vulkan interop
tests fails on older hardware because this exceeds the maximum barrier
size limit.

Changed to 256, which is still a multiple of 32 and 64,
and is below the hardware limitations. The tests are not performance
tests anyways, so the performance penalty, if any, is acceptable.

Signed-off-by: Ahmed Hesham <ahmed.hesham@arm.com>
This commit is contained in:
Ahmed Hesham
2023-11-14 18:33:46 +00:00
committed by GitHub
parent 482126d611
commit 8b1a44f93f
2 changed files with 1 additions and 1 deletions
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2
test_conformance/vulkan/shaders/buffer.comp
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@@ -15,7 +15,7 @@ layout(binding = 1) buffer Buffer
{ {
uint8_t ptr[]; uint8_t ptr[];
} bufferPtrList[MAX_BUFFERS]; } bufferPtrList[MAX_BUFFERS];
layout(local_size_x = 512) in; layout(local_size_x = 256) in;
void main() { void main() {
for (uint32_t bufIdx = 0; bufIdx < numBuffers; bufIdx++) { for (uint32_t bufIdx = 0; bufIdx < numBuffers; bufIdx++) {
uint32_t ptrIdx = gl_GlobalInvocationID.x; uint32_t ptrIdx = gl_GlobalInvocationID.x;

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test_conformance/vulkan/shaders/buffer.spv
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