[MPICH] build mpich2 with Myrinet GM

[Wei-keng Liao]

I got an error during make:

../include/mpid_nem_atomics.h(31): catastrophic error: #error directive: 
No swap function defined for this architecture
  #error No swap function defined for this architecture
   ^
compilation aborted for mpid_nem_alloc.c (code 4)

I am using configure options:
          --with-device=ch3:nemesis:gm  \
          --with-gm=/opt/gm \
          --enable-f77 --enable-f90 --enable-cxx \
          --enable-fast \
          --enable-romio \
          --without-mpe \
          --with-file-system=ufs

and the command "uname -a" on the machine is
Linux tg-login4 2.4.21-309.tg1 #1 SMP Thu Jun 1 17:07:28 CDT 2006 ia64 
unknown

I am using Intel compiler v 9.1.043

Wei-keng


On Tue, 26 Feb 2008, Darius Buntinas wrote:
> 
> On 02/26/2008 10:08 AM, Wei-keng Liao wrote:
> > I have a few questions on build mpich2-1.0.6p1 with Myrinet GM library.
> > 
> > On my target machine, the GM library (include, lib, bin, etc.) is in
> > /opt/gm. According to MPICH README, I used the 2 options below when
> > configuring: 
> >     --with-device=ch3:nemesis:gm  and --with-gm=/opt/gm
> > 
> > I can see both libgm.a and libgm.so are in /opt/gm/lib.
> > 
> > Q1: Do I need other configure options or setting environment variables
> >     (in addition to CC, FC, CXX, F90)? Should I set LDFLAGS to
> >     "-L/opt/gm/lib -lgm" ?
> 
> Nope, the --with-gm=/opt/gm should take care of all of that for you.
> 
> > Q2: Since nemesis does not support MPI dynamic process routines yet and I 
> >     need those routines, can I use --with-device=ch3:sock:gm instead?
> 
> No, only nemesis supports gm.
> 
> > Q3: Do I need anything else (source codes, library) from Myrinet to build 
> >     mpich? Or the /opt/gm is good enough?
> 
> All you need is libgm.a and gm.h.
> 
> > Q4: Once the mpich is built, is there a way to verify that GM is actually 
> >     used?
> 
> Well, you should see a performance improvement over using sockets.  Run a
> ping-pong test; you should see latencies around 10us or less.
> 
> -d
>