Hi Freddie,
Thank you very much indeed for your answer.
It does solve the problem.
Regards,
Watchapon
On Monday, June 22, 2015 at 6:47:00 PM UTC+7, Freddie Witherden wrote:
>
> Hi Watchapon,
>
> On 22/06/15 12:41, Watchapon Rojanaratanangkule wrote:
> > I am trying to run PyFR0.8.0 using openmp backend, but the following
> > error occurred. I am not sure if the error happened due to Python or gcc
> > or even Blas library. I am running PyFR on Mac OS X 10.10.3 and using
> > Python 3.4.3, gcc 4.9.2 and atlas for Blas library.
>
> The issue is somewhat suble and can be reproduced as follows:
>
> calcium:~ freddie$ cat test.c
> #include <stdio.h>
>
> int main()
> {
> printf("%f\n", 3.14);
> return 0;
> };
>
> calcium:~ freddie$ gcc-mp-4.9 -march=native test.c
> cc7YTUIB.s:13:no such instruction: `vmovd %rax, %xmm0'
>
> where we see that it is an issue with the distribution of GCC being
> unable to handle AVX instructions correctly.
>
> The workaround is to remove the "-march=native" flag from
> pyfr/backends/openmp/compiler.py file.
>
> However, this is fundamentally a compiler problem: compilers should not
> be emitting instructions which they are uanble to assemble.
>
> Regards, Freddie.
>
>
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