Of course you also have to have a common (NFS) filesystem.
This means, your data have to be in a certain directory, which must be
exported on the server and mounted on the remote node under the same
node (with rwx permissions)
test:
pwd
export PWD=`cwd` (if not already set)
ssh nodeXX "cd $PWD;ls"
Then you need passwordless login, and (as you now have done ?) you must
make sure that ssh transmits/accepts your current environment.
To run k-point parallel across different nodes, is it enough to simply
have w2k installed on all the nodes along with pw-less ssh? I have
pw-less ssh working among the nodes, but when I try to run another
kpoint on another node, the shell cannot find the executables:
$ x lapw1 -p
starting parallel lapw1 at Wed Oct 16 10:48:53 PDT 2013
-> starting parallel LAPW1 jobs at Wed Oct 16 10:48:53 PDT 2013
running LAPW1 in parallel mode (using .machines)
2 number_of_parallel_jobs
[1] 4653272
[2] 3605022
ksh: lapw1c: not found.
ksh: fixerror_lapw: not found.
ksh: /home/oliver/data/wiendir/benchmark/test_case: not found.
ksh: lapw1c: not found.
ksh: fixerror_lapw: not found.
[2] - Done ( ( $remote $machine[$p] ...
[1] + Done ( ( $remote $machine[$p] ...
stblade01(1) 0.000u 0.000s 0.1 0.00% 0+0k 0+0io 0pf+0w
stblade02(1) 0.000u 0.000s 0 0.00% 0+0k 0+0io 0pf+0w
test_case.scf1_1: A file or directory in the path name does not exist.
Summary of lapw1para:
stblade01 k=1 user=0 wallclock=6
stblade02 k=1 user=0 wallclock=0
0.1u 0.1s 0:02 8% 0+0k 0+0io 0pf+0w
.machines:
1:stblade01
1:stblade02
Sincerely,
Oliver
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--
P.Blaha
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Peter BLAHA, Inst.f. Materials Chemistry, TU Vienna, A-1060 Vienna
Phone: +43-1-58801-165300 FAX: +43-1-58801-165982
Email: bl...@theochem.tuwien.ac.at WWW:
http://info.tuwien.ac.at/theochem/
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