HI,
I am doing research about multicore computers.
our group got a SUN T5120 server with solaris 10 OS.
The server processor is Ultra-sparc T2 processor with 8 cores.
I am trying to run CPU2000 benchmark on it.
But, Now , I got a problem.
I divide the 64 virtual processors into 8 groups, and each group has 8 virtual
processors .
I assign 11 CPU2000 floating point benchmark programs to each group so that the
total work load is 11 x 8.
I need to make sure that all processes of the benchmarks only run in their
assigned group.
I have to use "psrset" command in "super user " mode to divide the virtual
processors.
And then I designed a shell script to run CPU2000 benchmarks as a normal user.
But, I got :
$ ./myjob.sh
/usr/sbin/psrset: cannot exec in processor set 1: Not owner
I also have studied RBAC (Role Based Access Control) and
set up a role for my user name in order to run psrset -e (with optional
arguments) in the specified processor set.
In this way, I want to make sure that the command process and any child
processes of the benchmarks are
executed only by processors in their assigned processor set.
my command :
psrset -e 1 runspec --config=sun_sparc_solaris --size=ref --noreportable --
iterations=1 swim
And, I have added the followg line in the file /etc/security/exec_attr
Runshrc:suser:cmd:::/usr/sbin/psrset:uid=0
I have also tried to use "pbind" , I got the same error.
Would you please help me ?
Thanks,
Andrew
May 4 2008
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