Hello Murali,
As per pvfs2, I have not done any benchmark yet but looks fine using linux
commands (cp, ls, mkdir...etc), just instantaneous, no delay at all.
I still couldnot get the mpich compiled with romio support :(. I tried with
gnu compiler and -lrt. Ill send the config files offlist.
Thanks in advance,
nasr
From: Murali Vilayannur <[EMAIL PROTECTED]>
To: "Nasr Y.M.J.O." <[EMAIL PROTECTED]>
CC: [email protected]
Subject: Re: [Pvfs2-users] PVFS2 Too Slow
Date: Mon, 18 Sep 2006 09:04:52 -0500 (CDT)
Hi Nasr,
> Thanks for the hints. Regarding pvfs2 1.5.1, I compiled berkeley db
4.3.29
> from source and later compiled pvfs2 1.5.1 pointing to it. Everything is
> working fine.
Great!
> My question is, I have two databases now, the old one which
> handles the cluster and the new compiled one which is for pvfs2, will
there
> be any troubles later on? I compiled the new db (4.3.29) statically in
/opt
> directory and pushed it to all nodes. So far, no errors in all tests and
the
> kernel space commands are just fine.
I think it should be ok. If you have problems later on, do report them..
Is PVFS2 performance reasonable on your setup now?
>
> Regarding mpich, Ill send you the log file offlist in a separate email.
Ok, from the log file I see that the link fails because of
undefined functions gethrtime(), clock_gettime() which probably means if
you do
export LIBS="-lpvfs2 -lrt", then redo configure, and make it might just
work :)
Also try it first with gcc, since some of the functionalities (for eg.
support for var arg macros) seem to be absent
from the version of icc that is installed on your cluster.
thanks!
Murali
>
> Thanks for your help.
>
> nasr
>
>
>
>
> >From: Murali Vilayannur <[EMAIL PROTECTED]>
> >To: "Nasr Y.M.J.O." <[EMAIL PROTECTED]>
> >CC: [email protected]
> >Subject: Re: [Pvfs2-users] PVFS2 Too Slow
> >Date: Mon, 18 Sep 2006 00:03:15 -0500 (CDT)
> >
> >Hi Nasr,
> > >
> > > Many thanks for the reply. Regarding pvfs2 being too slow I figured
out
> >the
> > > reason which was due to one of the IO servers going down. Now pvfs2
is
> > > working fine.
> >
> >Cool! Good to hear that.
> >
> > > In a related matter, Im trying to compile mpich 1.2.7p1 with romio
> >support
> > > for pvfs2. Without pvfs2, the configuration step will go through,
but
> >with
> > > pvfs2 there is an error (I tried both Intel and gnu compilers). Im
> >attaching
> > > below as well the steps and the config.log.
> >
> > >
> > > # cp /root/Desktop/cluster/mpich1.2.7/mpich.tar.gz /usr/local/src
> > > # cd /usr/local/src
> > > # tar -zxf mpich.tar.gz
> > > # mkdir -p /opt/mpich1/intel
> > > # mkdir -p /tmp/mpich1/intel
> > > # export RSHCOMMAND=ssh
> > > # export LDFLAGS="-L/opt/pvfs2/lib"
> > > # export CFLAGS="-I/opt/pvfs2/include"
> > > # export LIBS="-lpvfs2"
> > > # export CC="/opt/intel/cc/9.1/bin/icc"
> > > # export CXX="/opt/intel/cc/9.1/bin/icpc"
> > > # export FC="/opt/intel/fc/9.1/bin/ifort"
> > > # export F90="/opt/intel/fc/9.1/bin/ifort"
> > > # cd /tmp/mpich1/intel
> > > # /usr/local/src/mpich-1.2.7p1/configure --prefix=/opt/mpich1/intel
> > > --with-device=ch_p4:-socksize=1048576 --with-comm=shared
> >--enable-sharedlib
> > > --enable-romio --with-file-system=pvfs2+nfs+ufs -opt=-O3
> > >
>
>------------------------------------------------------------------------------------------------------------------------------------------
> > > CONFIG.LOG FILE
> > >
> > > configure:/opt/intel/cc/9.1/bin/icc -I/opt/pvfs2/include conftest.c
-o
> > > conftest -lpvfs2
> > > configure: failed program was:
> > >
> > > #define MPE_USE_EXTENSIONS 1
> > > #include "confdefs.h"
> > > int f(double a){return 0;}
> > > int main() { exit(0); }
> > > int t() { }
> > > conftest.c(4): warning #1011: missing return statement at end of
> >non-void
> > > function "t"
> > > int t() { }
> > > ^
> > >
> > > configure:gcc -I/opt/pvfs2/include conftest.c -o conftest -lpvfs2
> > > configure: failed program was:
> > >
> > > #define MPE_USE_EXTENSIONS 1
> > > #include "confdefs.h"
> > >
> > > int main() { exit(0); }
> > > int t() { return 0; }
> > >
> >
> >Hmm.. Quite frankly, I am puzzled.
> >The only thing I can think of is the following:
> >Why isn't there a "-L /opt/pvfs2/lib" on the gcc command line? It is
> >perhaps not picking up your LDFLAGS and therefore not able to locate
> >libpvfs2.a. Also, can you double check to see if libpvfs2.a is indeed
> >installed in that path?
> >
> >Other than those guesses, I do not know why the build failed..
> >Is that all
> >config.log/config.status had? If the file is not too big, can you just
> >mail those to me off-list?
> >
> >
> >
>
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