"illegal instruction" only on certain CPUs

[luisas]

Hey all :)

I have been playing around to integrate kalign into this pipeline.

I deployed it on different compute environments and noticed that on (mostly older) CPUs I get an "illegal instruction" error.

 41 Done                    unpigz -cdf gluts-ref.fa
        42 Illegal instruction     (core dumped) | kalign -n 2 -o gluts-ref_null-args-null_KALIGN-args-null.aln

The command line:

unpigz -cdf gluts-ref.fa | \
kalign \
     \
    -n 2 \
    -o gluts-ref_null-args-null_KALIGN-args-null.aln

Do you have any idea why this may be happening and whether it is somehow preventable?

Thanks a lot :)

[TimoLassmann]

Hi,
Do you have a list of the CPU's causing this error?
Thanks!

[luisas]

On these ones they were failing: Intel(R) Xeon(R) CPU E5-2680 0 @ 2.70GHz

I do not have a comprehensive list unfortunately