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This sensor script adds several new items: mhz (from /proc/cpuinfo); bytes_in/out, packets_in/out, packeterrs_in/out (from /proc/net/dev); disk_rd/wr, disk_sec_rd/wr, swap_rd/wr, swap_sec_rd/wr (from /proc/swap); scr_free (using df on /scratch); jobs (count of sge_shepard instances); ping (time to ping a known machine); and watts and kwh (from Dell's ipmitool).
Similar to the mpirun script found in most MPI packages, this starts 1 server and N-1 clients, interacting with SGE to make sure your clients are running through qrsh (use -S to kick-in the SGE features, otherwise ssh is used).
This is somewhat specific to our configuration of SGE – everyone has low-priority access, some users have high-priority access on machines they own. You can have high-priority access by way of your Unix (user) group or an SGE user group or the machine may allow multiple SGE user groups.
These tools were hacked together to allow an old version of Mathematica to play nice with an old version of SGE – if you are using recent versions of either, it should "just work". Using the /usr/share/sge/mpi/rsh.sh script as a guide, we were able to get Mathematica to properly use qrsh instead of ssh – though some user-code modification was needed:
-mathlink -linkmode Connect `4` -linkname '`2`' -subkernel -noinit &"
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Last modified: March 12, 2019