Commit 96f0a007 authored by Lisa Gerhardt's avatar Lisa Gerhardt

Added bits about shifter modules that got lost in the transition

parent eaa333a6
......@@ -150,6 +150,26 @@ sources other than Docker will be enabled. If you have a specific need
for this now, please
see our [support page](
## Shifter Modules
Shifter has functionality that can be toggled on or off using modules
flags. By default, the "mpich" module is enabled at NERSC which allows
communication between nodes using the high-speed
interconnect. However, you can override this default by invoking
shifter with the "--modules" flag. Currently, the only allowable
values for modules are:
| Module Name | Function |
|mpich |Allows communication between nodes using the high-speed interconnect|
|cvmfs |Makes access to DVS shared CVMFS software stack available at /cvmfs in the image|
|none |Turns off all modules|
Modules can be used together. So if you wanted MPI functionality and
access to cvmfs, use "shifter --modules=mpi,cvmfs". Using the flag
"none" will disable all modules (even if you list others in the
command line).
## Running Jobs in Shifter Images
Shifter images can only be accessed via the batch system. For each of
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