04-21-2010
Per our
forum rules, all posts must be in English.
We do provide translation services for posts from English to a number of languages as a benefit to users. However, posts must be in English.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
What is the SMP support like when you are running Linux 7.3 on a system with 2-4 CPUs? (3 Replies)
Discussion started by: AngryRabbi
3 Replies
2. SCO
I have a dell machine Dell 2600 PowerEdge it has two processor (intel Xeon ).
Is there a path or a software that will work with SCO unix in order to enable second processor and how would i know that the second processor is active.
Thanks a lot guys . (1 Reply)
Discussion started by: josramon
1 Replies
3. Linux Benchmarks
System:
CPU/Speed: Dual Intel Xeon 2.4Ghz
Ram: 2 GB DDR 266 SDRAM
Motherboard: SuperMicro X5DE8-GG
Bus: 533MHz/400MHz system bus -
Cache: 512KB
HD Controller: EIDE Serverworks™ GC-SL Chipset
Extra GCC compiler flags:
-s... (3 Replies)
Discussion started by: Neo
3 Replies
4. Red Hat
I have installed redhat linux 9.0 on P4 HT machine. The grub boot loader shows path to smp mode and normal mode. when machine shut downs from smp version kernal , need to press the power button to power off. But in normal mode the system shut downs or power downs automatically(ie, full... (2 Replies)
Discussion started by: pcsaji
2 Replies
5. Programming
Interesting issue. There was some discussion on the LKML last year regarding the potential problems in concurrent applications reusing file descriptors in various scenarios. The main issue is that the reuse of a file descriptor and reception of data in a threaded application can be confused pretty... (1 Reply)
Discussion started by: ramen_noodle
1 Replies
6. UNIX for Dummies Questions & Answers
hi, may i know how to run mpi after i had install the rock cluster? is there any guidelines or examples? (0 Replies)
Discussion started by: joannetan9984
0 Replies
7. High Performance Computing
Provides a description of how to set up a Solaris Cluster Express cluster in a VirtualBox on OpenSolaris.
More... (0 Replies)
Discussion started by: Linux Bot
0 Replies
8. High Performance Computing
Hi,
I've installed mpich2 v. 1.2.1p1 on a cluster of dual-processors with the default options (in previous versions I used 'ssm' device, but now I use 'nemesis').
I'd like that every time I execute a job (e.g. with 2 MPI-processes), each job's process be dispatched on a different machine... (0 Replies)
Discussion started by: Sonia_
0 Replies
9. Solaris
Hello experts -
I am planning to install a Sun cluster 4.0 zone cluster fail-over. few basic doubts.
(1) Where should i install the cluster s/w binaries ?. ( global zone or the container zone where i am planning to install the zone fail-over)
(2) Or should i perform the installation on... (0 Replies)
Discussion started by: NVA
0 Replies
10. Programming
The SCO OSR 5.7 system was migrated from older HP DL360 to new DL380 G7. The SMP feature was not activated on older box, it is activated now on this 4 core Xeon.
A s/w we maintain has been copied without any change over to the new box. I noticed that the application profiling does not show any... (4 Replies)
Discussion started by: migurus
4 Replies
LEARN ABOUT MOJAVE
english5.18
English(3pm) Perl Programmers Reference Guide English(3pm)
NAME
English - use nice English (or awk) names for ugly punctuation variables
SYNOPSIS
use English;
use English qw( -no_match_vars ) ; # Avoids regex performance penalty
# in perl 5.16 and earlier
...
if ($ERRNO =~ /denied/) { ... }
DESCRIPTION
This module provides aliases for the built-in variables whose names no one seems to like to read. Variables with side-effects which get
triggered just by accessing them (like $0) will still be affected.
For those variables that have an awk version, both long and short English alternatives are provided. For example, the $/ variable can be
referred to either $RS or $INPUT_RECORD_SEPARATOR if you are using the English module.
See perlvar for a complete list of these.
PERFORMANCE
NOTE: This was fixed in perl 5.20. Mentioning these three variables no longer makes a speed difference. This section still applies if
your code is to run on perl 5.18 or earlier.
This module can provoke sizeable inefficiencies for regular expressions, due to unfortunate implementation details. If performance matters
in your application and you don't need $PREMATCH, $MATCH, or $POSTMATCH, try doing
use English qw( -no_match_vars ) ;
. It is especially important to do this in modules to avoid penalizing all applications which use them.
perl v5.18.2 2014-01-06 English(3pm)