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<DIV dir=ltr align=left><SPAN class=743180121-26032010><FONT color=#0000ff
size=2 face=Arial>The mailing list for MPICH-G2 is <A
href="mailto:mpi@globus.org">mpi@globus.org</A>, which I have CCed
here.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=743180121-26032010><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=743180121-26032010><FONT color=#0000ff
size=2 face=Arial>Rajeev</FONT></SPAN></DIV><BR>
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<FONT size=2 face=Tahoma><B>From:</B> mpich-discuss-bounces@mcs.anl.gov
[mailto:mpich-discuss-bounces@mcs.anl.gov] <B>On Behalf Of </B>Vladimir
Janjic<BR><B>Sent:</B> Friday, March 26, 2010 9:48 AM<BR><B>To:</B>
mpich-discuss@mcs.anl.gov<BR><B>Subject:</B> [mpich-discuss] mpich-g2 +
firewalls + mpich-g2 over MPICH-basedvendor-MPI<BR></FONT><BR></DIV>
<DIV></DIV>hi all,
<DIV><BR></DIV>
<DIV>i have the following situation : i have four 8-core servers (say, servers
s1a,s1b,s1c,s1d) on one site, and six 4-core servers (s2a,s2b,s2c,s2d,s2e,s3f)
on the other site.</DIV>
<DIV>i want to run MPI applications on all of them, using the globus
middleware. i have globus installed on s1a, and on all machines on site 2
(s2a-s2f).</DIV>
<DIV>firewall between s1a and s2a-s2f machines has all necessary ports open,
and i can use mpich-g2 to run MPI applications on grid consisting of
{s1a,s2a,s2b,s2c,s2d,s2e,s2f} grid.</DIV>
<DIV>however, i want to include s1b-s1d machines in this system. the problem
is, there is a firewall blocking the traffic from s1b-s1d to s2a-s2f, and
arranging institutions to open new holes in</DIV>
<DIV>firewall is very long and tiresome process.</DIV>
<DIV>i have read that it is possible to set-up mpich-g2 to use vendor MPI for
running programs. i have mpich2 set up on s1a-s1d machines, so i can run MPI
programs on them. is it possible to set-up</DIV>
<DIV>globus and mpich-g2 so that all communication between s1a-s1d uses mpich2
local implementation, and all communication from s1b-s1d to s2a-s2f machines
(and vice versa) to go through the</DIV>
<DIV>head node s1a (since firewall will not block this traffic)? so, for
example, if s2a needs to send the message to s1b, it sends it via s1a? do i
need to have globus and mpich-g2 installed on s2b-s2d servers in that
case?</DIV>
<DIV><BR></DIV>
<DIV>i hope my question is at least remotely clear :)</DIV>
<DIV><BR></DIV>
<DIV>thanks a lot,</DIV>
<DIV>vladimir</DIV></BLOCKQUOTE></BODY></HTML>