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O3 optimization are slower on SG2042 #60

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xhebox opened this issue Jul 24, 2023 · 3 comments
Open

O3 optimization are slower on SG2042 #60

xhebox opened this issue Jul 24, 2023 · 3 comments

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@xhebox
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xhebox commented Jul 24, 2023

Seems that O3 optimization is too aggressive on most RISCV systems, where pipeline/caching is not doing as well as x86. Disable O3 makes chatglm2 runs at 3.6t/s compared to 3t/s.
@chenqy4933
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its sames the compiler issue

@xhebox
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xhebox commented Jul 24, 2023

its sames the compiler issue

Yep. But I am thinking disable O3 by default. Or make it a CMake option somehow.

@chenqy4933
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I agree it

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@xhebox @chenqy4933