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illegal instruction (core dumped) #264

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amandalqy opened this issue Sep 21, 2020 · 3 comments
Closed

illegal instruction (core dumped) #264

amandalqy opened this issue Sep 21, 2020 · 3 comments

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@amandalqy
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Hi, when I run the excecutable named demo, the following errors occur:illegal instruction (core dumped). Does anyone know the reason? If it is because the version of cpu, what is the minimum version of cpu required by Quest ? Thanks!
@TysonRayJones
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Hi Amanda,

This may relate to issue #259, caused by a default compile flag for AVX, which may be a facility that your CPU doesn't support.
If that's the case, you can merely disable the flag. Just remove line 205 of QuEST/CMakeLists.txt

What CPU are you using by the way? This might help me better understand the issue.

Thanks,
Tyson

@amandalqy
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amandalqy commented Sep 24, 2020 •
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Hi Tyson! Thanks for your reply! The CPU I use is Intel Celeron(R) CPU J1900. Thanks again!

@TysonRayJones
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Ah yep, indeed that has no AVX support. Glad to help!

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@TysonRayJones @amandalqy