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luotao1
changed the title
Fix bug that thread configuration parameters are out of bounds
【PaddlePaddle Hackathon 5 No.48】Fix bug that thread configuration parameters are out of bounds
Nov 2, 2023
…ameters are out of bounds (PaddlePaddle#58307)
* modified: paddle/phi/kernels/gpu/strided_copy_kernel.cu
* modified: VerifyThreadConfigurationParameters
* fix bugs
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PR types
Bug fixes
PR changes
OPs
Description
StridedCopyKernel在某些情况下,block.x、block.y、block.z、grid.y、grid.z的数值,会变的极端:过大,会报错;过小,性能会受到影响。
硬件限制
block.x <= 1024
block.y <= 1024
block.z <= 64
block.x * block.y * block.z >= 96(小于96时性能大幅降低)
block.x * block.y * block.z <= 1024
grid.x 无限制
grid.y < 2^16
grid.z < 2^16
关联PR
【PaddlePaddle Hackathon 5 No.48】ContiguousKernel、StridedCopyKernel算子CPU、GPU性能优化 -part #57835