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[mod4 (modulerc)]$ module purge
[mod4 (modulerc)]$ module load pgi/19.4
[mod4 (modulerc)]$ module load foo/2.4
[mod4 (modulerc)]$ module list
Currently Loaded Modulefiles:
1) pgi/19.4 2) foo/2.4/pgi/19.4/nompi(default)
[mod4 (modulerc)]$ foo
foo 2.4 (pgi/19.4, nompi)
[mod4 (modulerc)]$ module unload foo
[mod4 (modulerc)]$ module load openmpi/3.1
[mod4 (modulerc)]$ module load foo/2.4
[mod4 (modulerc)]$ module list
Currently Loaded Modulefiles:
1) pgi/19.4 3) foo/2.4/pgi/19.4/openmpi/3.1(default)
2) openmpi/3.1/pgi/19.4(default)
[mod4 (modulerc)]$ foo
foo 2.4 (pgi/19.4, openmpi/3.1)
[mod4 (modulerc)]$ module unload foo
[mod4 (modulerc)]$ module unload openmpi
[mod4 (modulerc)]$ module switch --auto pgi intel/2019
[mod4 (modulerc)]$ module load foo/2.4
Loading foo/2.4/intel/2019/intelmpi
ERROR: foo/2.4/intel/2019/intelmpi cannot be loaded due to missing prereq.
HINT: the following module must be loaded first: intelmpi
[mod4 (modulerc)]$ module list
Currently Loaded Modulefiles:
1) intel/2019
[mod4 (modulerc)]$ foo
foo: command not found
[mod4 (modulerc)]$ module unload foo
[mod4 (modulerc)]$ module load foo/2.4/intel/2019/nompi
[mod4 (modulerc)]$ module list
Currently Loaded Modulefiles:
1) intel/2019 2) foo/2.4/intel/2019/nompi
[mod4 (modulerc)]$ foo
foo 2.4 (intel/2019, nompi)
[mod4 (modulerc)]$ module unload foo
[mod4 (modulerc)]$ module switch --auto intelmpi mvapich/2.3.1
[mod4 (modulerc)]$ module load foo/2.4
Loading foo/2.4/intel/2019/intelmpi
ERROR: foo/2.4/intel/2019/intelmpi cannot be loaded due to missing prereq.
HINT: the following module must be loaded first: intelmpi
[mod4 (modulerc)]$ module list
Currently Loaded Modulefiles:
1) intel/2019 2) mvapich/2.3.1/intel/2019(default)
[mod4 (modulerc)]$ foo
foo: command not found
[mod4 (modulerc)]$ module unload foo
[mod4 (modulerc)]$ module switch --auto mvapich openmpi/4.0
[mod4 (modulerc)]$ module load foo/2.4
[mod4 (modulerc)]$ module list
Currently Loaded Modulefiles:
1) intel/2019
2) openmpi/4.0/intel/2019(default)
3) foo/2.4/intel/2019/openmpi/4.0(default)
[mod4 (modulerc)]$ foo
foo 2.4 (intel/2019, openmpi/4.0)
[mod4 (modulerc)]$ module unload foo
[mod4 (modulerc)]$ module unload openmpi
[mod4 (modulerc)]$ module switch --auto intel/2019 gcc/9.1.0
[mod4 (modulerc)]$ module load foo/2.4
[mod4 (modulerc)]$ module list
Currently Loaded Modulefiles:
1) gcc/9.1.0 2) foo/2.4/gcc/9.1.0/nompi(default)
[mod4 (modulerc)]$ foo
foo 2.4 (gcc/9.1.0, nompi)
[mod4 (modulerc)]$ module unload foo
[mod4 (modulerc)]$ module load mvapich/2.3.1
[mod4 (modulerc)]$ module load foo/2.4
[mod4 (modulerc)]$ module list
Currently Loaded Modulefiles:
1) gcc/9.1.0 3) foo/2.4/gcc/9.1.0/nompi(default)
2) mvapich/2.3.1/gcc/9.1.0(default)
[mod4 (modulerc)]$ foo
foo 2.4 (gcc/9.1.0, nompi)
[mod4 (modulerc)]$ module unload foo
[mod4 (modulerc)]$ module switch --auto mvapich openmpi/4.0
[mod4 (modulerc)]$ module load foo/2.4
[mod4 (modulerc)]$ module list
Currently Loaded Modulefiles:
1) gcc/9.1.0 3) foo/2.4/gcc/9.1.0/openmpi/4.0(default)
2) openmpi/4.0/gcc/9.1.0(default)
[mod4 (modulerc)]$ foo
foo 2.4 (gcc/9.1.0, openmpi/4.0)
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