HPL on Rocks 5.3

Login or Register to Reply

Thread Tools Search this Thread
# 1  
HPL on Rocks 5.3

I am new to cluster benchmarking wondering if there was any guide available that I missed in my google searchs for HPL.
Login or Register to Reply

Thread Tools Search this Thread
Search this Thread:
Advanced Search

More UNIX and Linux Forum Topics You Might Find Helpful
Rocks cluster 6.1 and MPICH2 problem??????
Hey friends, I am trying to execute a simple hello world in mpi on MPICH2 on Rocks cluster. here is the c source code. #include <mpi.h> #include <stdio.h> int main( int argc, char ** argv ) { MPI_Init( NULL, NULL ); int world_size; MPI_Comm_size( MPI_COMM_WORLD, &world_size ); ...... Linux
g03 problems on rocks 5.3 with sge queue.
Dear all, I'm a new guy doing some quntum calculation with gaussian on my rocks clusters. Recently, my cluster upgraded to rocks 5.3, but something strange happened. Everything goes correct except a serious problem. when I summit my gaussian job with script to sge queue, the job does run,...... UNIX for Dummies Questions & Answers
UNIX for Dummies Questions & Answers
Tuning HPL.dat for Beowulf Cluster [Linpack]
Hi guys, I am having some issues tuning the HPL.dat file for the Linpack benchmark test across 2 nodes. I am very new to this with minimal Linux experience, however i am trying my luck. The specs for the two nodes are: 3GHZ QX6850 CORE 2 EXTREME (QUAD CORE) 4GB RAM I have been typing these...... High Performance Computing
High Performance Computing
Digital TV Rocks!
I will move sometime over the next few months and I cancelled my cable tv service a few weeks ago. I got some rabbit ears, but I really could only pick up a few channels and they were snowy. But I went to US government digital TV website and honestly said that my only source of tv signals was an...... What is on Your Mind?
What is on Your Mind?
SIGSET(3)						     Linux Programmer's Manual							 SIGSET(3)

sigset, sighold, sigrelse, sigignore - System V signal API
#include <signal.h> typedef void (*sighandler_t)(int); sighandler_t sigset(int sig, sighandler_t disp); int sighold(int sig); int sigrelse(int sig); int sigignore(int sig); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): sigset(), sighold(), sigrelse(), sigignore(): _XOPEN_SOURCE >= 500 || _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED
These functions are provided in glibc as a compatibility interface for programs that make use of the historical System V signal API. This API is obsolete: new applications should use the POSIX signal API (sigaction(2), sigprocmask(2), etc.) The sigset() function modifies the disposition of the signal sig. The disp argument can be the address of a signal handler function, or one of the following constants: SIG_DFL Reset the disposition of sig to the default. SIG_IGN Ignore sig. SIG_HOLD Add sig to the process's signal mask, but leave the disposition of sig unchanged. If disp specifies the address of a signal handler, then sig is added to the process's signal mask during execution of the handler. If disp was specified as a value other than SIG_HOLD, then sig is removed from the process's signal mask. The dispositions for SIGKILL and SIGSTOP cannot be changed. The sighold() function adds sig to the calling process's signal mask. The sigrelse() function removes sig from the calling process's signal mask. The sigignore() function sets the disposition of sig to SIG_IGN.
On success, sigset() returns SIG_HOLD if sig was blocked before the call, or the signal's previous disposition if it was not blocked before the call. On error, sigset() returns -1, with errno set to indicate the error. (But see BUGS below.) The sighold(), sigrelse(), and sigignore() functions return 0 on success; on error, these functions return -1 and set errno to indicate the error.
For sigset() see the ERRORS under sigaction(2) and sigprocmask(2). For sighold() and sigrelse() see the ERRORS under sigprocmask(2). For sigignore(), see the errors under sigaction(2).
SVr4, POSIX.1-2001. These functions are obsolete: do not use them in new programs. POSIX.1-2008 marks sighold(), sigignore(), sigpause(), sigrelse(), and sigset() as obsolete, recommending the use of sigaction(2), sigprocmask(2), pthread_sigmask(3), and sigsuspend(2) instead.
These functions appeared in glibc version 2.1. The sighandler_t type is a GNU extension; it is used on this page only to make the sigset() prototype more easily readable. The sigset() function provides reliable signal handling semantics (as when calling sigaction(2) with sa_mask equal to 0). On System V, the signal() function provides unreliable semantics (as when calling sigaction(2) with sa_mask equal to SA_RESETHAND | SA_NODEFER). On BSD, signal() provides reliable semantics. POSIX.1-2001 leaves these aspects of signal() unspecified. See signal(2) for further details. In order to wait for a signal, BSD and System V both provided a function named sigpause(3), but this function has a different argument on the two systems. See sigpause(3) for details.
In versions of glibc before 2.2, sigset() did not unblock sig if disp was specified as a value other than SIG_HOLD. In versions of glibc before 2.5, sigset() does not correctly return the previous disposition of the signal in two cases. First, if disp is specified as SIG_HOLD, then a successful sigset() always returns SIG_HOLD. Instead, it should return the previous disposition of the sig- nal (unless the signal was blocked, in which case SIG_HOLD should be returned). Second, if the signal is currently blocked, then the return value of a successful sigset() should be SIG_HOLD. Instead, the previous disposition of the signal is returned. These problems have been fixed since glibc 2.5.
kill(2), pause(2), sigaction(2), signal(2), sigprocmask(2), raise(3), sigpause(3), sigvec(3), signal(7)
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2010-09-20 SIGSET(3)

Featured Tech Videos