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[mod4 (modulerc)]$ module purge
[mod4 (modulerc)]$ module load pgi/18.4
[mod4 (modulerc)]$ module load openmpi/3.1
[mod4 (modulerc)]$ module load foo/1.1
[mod4 (modulerc)]$ module list
Currently Loaded Modulefiles:
1) pgi/18.4 3) foo/1.1/pgi/18.4/openmpi/3.1(default)
2) openmpi/3.1/pgi/18.4(default)
[mod4 (modulerc)]$ foo
foo 1.1 (pgi/18.4, openmpi/3.1)
[mod4 (modulerc)]$ module switch --auto pgi intel/2018
**** ERROR *****:
Compiler Mismatch
Package openmpi/3.1/pgi/18.4 does not appear to be built for currently
loaded compiler intel/2018.
Loading openmpi/3.1/pgi/18.4
ERROR: Module evaluation aborted
**** ERROR *****:
Compiler Mismatch
Package foo/1.1/pgi/18.4/openmpi/3.1 does not appear to be built for currently
loaded compiler intel/2018.
Loading foo/1.1/pgi/18.4/openmpi/3.1
ERROR: Module evaluation aborted
Switching from pgi/18.4 to intel/2018
WARNING: Reload of dependent openmpi/3.1/pgi/18.4 failed
WARNING: Reload of dependent foo/1.1/pgi/18.4/openmpi/3.1 failed
Unloading dependent: foo/1.1/pgi/18.4/openmpi/3.1 openmpi/3.1/pgi/18.4
[mod4 (modulerc)]$ module list
Currently Loaded Modulefiles:
1) intel/2018
[mod4 (modulerc)]$ foo
foo: command not found
[mod4 (modulerc)]$ mpirun
mpirun: command not found
[mod4 (modulerc)]$ module purge
[mod4 (modulerc)]$ module load intel/2019
[mod4 (modulerc)]$ module load foo
Loading foo/intel/2019/intelmpi/2.4
ERROR: foo/intel/2019/intelmpi/2.4 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 load openmpi
[mod4 (modulerc)]$ module list
Currently Loaded Modulefiles:
1) intel/2019 2) openmpi/intel/2019/4.0
[mod4 (modulerc)]$ foo
foo: command not found
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