Using spack in a old version CentOS
Load newer version gcc, cmake, python(anaconda), etc…
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module load cmake-3.21.1
module load anaconda3
module load gcc-9.4.0
clear the spack cache and start over
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rm ~/.spack -rf
spack compiler find
spack spec gcc@11.2.0
spack install -j21 gcc@11.2.0
fetch error
Sometimes, there are error about fetch/SSL certificates.
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==> Warning: Spack will not check SSL certificates. You need to update your Python to enable certificate verification.
==> Error: FetchError: All fetchers failed for spack-stage-gawk-5.1.1-gb4xundr3gdxyixn3olufyqrzlk3klvc
/home/jxliu/software/spack/lib/spack/spack/package.py:1537, in do_fetch:
1534
1535 self.stage.create()
1536 err_msg = None if not self.manual_download else self.download_instr
>> 1537 start_time = time.time()
1538 self.stage.fetch(mirror_only, err_msg=err_msg)
1539 self._fetch_time = time.time() - start_time
1540
One simple method which may solve this problem is Using --insecure. This will not check SSL certificates and then fetch source code successfully.
As for how to remove the warning without using --insecure, there is a discussion on this webpage . But it did not work well for me.
remove SSL check warnings
This warning may be caused by the use of lower version git, curl, python, gcc. So we first load high version git, curl, python, gcc and then load spack.
Here, I use spack install the newest curl, git, gcc@11.2.0.
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module use /home/jxliu/software/spack/share/spack/modules/linux-centos7-skylake_avx512
module load git-2.35.2-gcc-11.2.0-dgkovwu
module load curl-7.83.0-gcc-11.2.0-rkxdfc4
module load python-3.9.12-gcc-11.2.0-xcqi7hi
module load gcc-11.2.0-gcc-9.4.0-ypvyezp
. /home/jxliu/software/spack/share/spack/setup-env.sh
You can add the above shell scripts to the ~/.bashrc file.
