Re: [PerfSuite-users] request of information

[Rick K. <rk...@nc...>]

Giuseppe,

Sorry to hear you are experiencing problems but hopefully they are nothing 
too serious.  Here is some feedback:

> 1. I am using PerfSuite 0.6.1 on double processor Intel Pentium III, OS
> RedHat/Linux 7.1, kernel 2.4.20-18.9 whit patch perfctr 2.6.0. I tried to
> install PAPI but no one seems to be compatible with may OS. Do you have a
> solution for me?

This is a problem best directed to the PAPI mailing list, but I think you 
already know since I see that you sent a mail to the PAPI team as well.  I 
think you'll get good advice from that source.  For anyone on this list 
who is not aware of the PAPI lists, there is an archive of postings that 
can be very helpful in seeing about problems and questions regarding PAPI 
here:

http://www.ptools.org/archive/perfapi/maillist.html

> 2. I tried to use psrun because the INSTALL file says that it is possible to use
> it without PAPI. I used it in the example matvec. I changed the compiler in
> Makefile.matvec because I have just g77 and not ifc.
> In my prompt I digit the following line
> 
>    psrun matvec-r4
> 
> and the answer is 
> 
> matvec-r4: error while loading shared libraries: libpsrun_r.so: cannot open
> shared object file: No such file or directory
> 
> What is happening? Thank you in advance. Giuseppe Grieco.

This usually means that the runtime linker cannot find shared libraries 
that it is looking for, in this case a PerfSuite shared library called 
"libpsrun_r.so".  On Linux, the environment variable LD_LIBRARY_PATH is 
what's used to provide additional directories to search (see the man page 
for ld.so).

PerfSuite includes two convenience scripts that are meant to set up 
environment variables like LD_LIBRARY_PATH properly for your installation 
based on the configure-time "--prefix" option.  There is one script for 
Bourne (bash) like shells called psenv.sh, and another for C (tcsh) like 
shells called psenv.csh.  Choose the one according to the shell you use 
and execute "source FILENAME" to incorporate the settings.

Another point to make is that this assumes that you have actually 
installed PerfSuite after building it by executing "make install".  It's 
not easy to get things set up properly from within the build directories.

Finally, please keep in mind that without hardware counter support such as 
through PAPI, you will only get time-based (gprof-like) profiling from 
psrun and libpshwpc.

Hope this helps and good luck,
Rick