[gmx-users] FFTW compiler error: no such instruction

[Mateusz Bieniek]

Dear Gromacsers,

After compiling gromacs successfully with SSE4.1 it suggested AVX_256
instead. With AVX_256 the compilation is interrupted with the FFTW error
below. In this case I am in need of more CPU power due to the multiple GPUs
installed.

----------------------------------------------------------
libtool: compile:  /opt/apps/compilers/gcc/5.3.0/bin/gcc -DHAVE_CONFIG_H
-I.
-I/.../gromacs-2018.2/buildavx/src/contrib/fftw/fftwBuild-prefix/src/fftwBuild/dft/simd/avx2-128
-I../../.. -I
/.../gromacs-2018.2/buildavx/src/contrib/fftw/fftwBuild-prefix/src/fftwBuild
-march=core-avx2 -mfma -O3 -fomit-frame-pointer -mtune=native
-malign-double -fstrict-aliasing -fno-schedule-insns -MT n2sv_32.lo -MD -MP
-MF .deps/n2sv_32.Tpo -c
/gromacs-2018.2/buildavx/src/contrib/fftw/fftwBuild-prefix/src/fftwBuild/dft/simd/avx2-128/n2sv_32.c
-fPIC -DPIC -o n2sv_32.o
/tmp/cczju8Es.s: Assembler messages:
/tmp/cczju8Es.s:33: Error: no such instruction: `shlx %rbx,56(%rsp),%rbx'
make[8]: *** [n2sv_4.lo] Error 1
make[8]: *** Waiting for unfinished jobs....
/tmp/ccsZIbpx.s: Assembler messages:
/tmp/ccsZIbpx.s:35: Error: no such instruction: `shlx %rbx,64(%rsp),%rbp'
make[8]: *** [n2sv_8.lo] Error 1
/tmp/ccdxksFN.s: Assembler messages:
/tmp/ccdxksFN.s:50: Error: no such instruction: `shlx %rbx,400(%rsp),%rbx'
make[8]: *** [n2sv_16.lo] Error 1
/tmp/ccTdLLjQ.s: Assembler messages:
/tmp/ccTdLLjQ.s:68: Error: no such instruction: `shlx %rbx,1168(%rsp),%rbx'

Any suggestions are welcome.

Thanks, Mateusz


Linux: Scientific Linux release 6.6 (Carbon)
gcc 5.3.0