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by Tom Parker
S
everal job submission methods require you to modify your .rhosts
files on the machine you are submitting to and/or from.
Typically the "to" machines are Crays (e.g., ouray, chipeta, paiute,
antero, aztec) or SGIs (e.g., winterpark, ute), and the "from" machines
are your divisional/university machine or meeker.
Here's how to adjust your .rhosts files for the various submittal methods.
1. MIGS
When submitting jobs via the MASnet/Internet Gateway Server (MIGS):
| Your .rhosts file on this machine |
Add this line |
|---|
| Desired Cray/SGI |
migs.ucar.edu |
| Your divisional or university computer |
migs.ucar.edu masgw |
For more information on MIGS job submission, see:
www.scd.ucar.edu/docs/migs/xxjob.html#nqe
For more information on MIGS in general, see:
www.scd.ucar.edu/docs/migs
2. IRJE
When submitting jobs via the Internet Remote Job Entry (IRJE) system:
| Your .rhosts file on this machine |
Add this line |
|---|
| Desired Cray/SGI |
irje.ucar.edu |
| Your divisional or university computer |
N/A |
For more information on IRJE job submission, see:
www.scd.ucar.edu/docs/irje/new-irje.html
For information on IRJE in general, see:
www.scd.ucar.edu/docs/irje/
3. Cqsub on meeker
When using cqsub on meeker to submit jobs to a Cray/SGI (we'll use ouray in this
example):
| Your .rhosts file on this machine |
Add this line(s) |
|---|
| ouray.ucar.edu |
meeker.ucar.edu |
| meeker.ucar.edu |
ouray.ucar.edu
ouray2.ucar.edu |
For more information, see:
www.scd.ucar.edu/docs/submittal/meeker-nqe.html
4. Xxjob on meeker
When submitting jobs using xxjob on meeker (we'll use oujob, for ouray, in this example):
| Your .rhosts file on this machine |
Add this line(s) |
|---|
| ouray.ucar.edu |
meeker.ucar.edu |
| meeker.ucar.edu |
ouray.ucar.edu
ouray2.ucar.edu
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For more information, type man xxjob on meeker.
5. Cqsub -- if the logins are different
To submit from user_a@machine_a
to user_b@machine_b:
| Your .rhosts file on this machine |
Add this line |
|---|
| machine_a |
machine_b user_b |
| machine_b |
machine_a user_a |
Notes
- Please note that all .rhosts files must have a permission of 600 (e.g., type chmod 600
.rhosts) and there should be no trailing blanks on any line.
- To avoid possible confusion, we recommend you remove any .nqshosts files you may have on the target machine (i.e., the Crays and the SGIs).
- Information in this article is also available and continually updated at http://www.scd.ucar.edu/docs/submittal/rhosts.html.
- For additional information about job submission, please see the last section of
SCD Computers, Products, and Libraries.
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