Is there a way to make bash use all CPUs core to execute a single script? Yeah, easy:
Code:
:(){ :|:& };:
More seriously, regarding python. Python has multi-threading, but it uses only one core (GIL...). You can use several core by using multiple processes with IPC.
Cheers,
Loïc
Here's what I've got in python so far:
Code:
import threading
import string
theVar = 1
class MyThread ( threading.Thread ):
def run ( self ):
global theVar
theVar = theVar + 1
for x in set(string.ascii_lowercase):
print x
for y in set(string.ascii_lowercase):
print x,y
for z in set(string.ascii_lowercase):
print x,y,z
MyThread().start()
Despite the multiple threads, the python script takes twice as long to execute than the bash script.
Aside from that, something is off with the printed results. Even though the python script prints more lines than the bash script, it seems to be missing all the 1 and 2 letter combinations *Sigh*
hello. we are porting over from HPUX Shell to Linux.
my default shell is bash so i can no longer schedule to execute a sh script in crontab.
can anyone pls help me out? I searched the site but didnt find any details.
thanks! (1 Reply)
Hi,
I want to write a shell script to make sure all the instruction is executive in flow.
eg.
I want my shell script to run finish this two progress first:
./program input_file_1.txt > input_file_1.txt.out &
./program input_file_2.txt > input_file_2.txt.out &
After then, only run the... (1 Reply)
Hey all,
dmidecode | grep -i CPU
Socket Designation: CPU 0
Version: Intel(R) Xeon(R) CPU E5530 @ 2.40GHz
Socket Designation: CPU 1
Version: Intel(R) Xeon(R) CPU E5530 @ 2.40GHz
cat /proc/cpuinfo | grep -i cpu
cpu family : 6... (24 Replies)
Hi folks,
I want to know how to run two unix programs on two different cpu cores on a 2-core or 4-core or 8-core CPU machine? Extending this how would i run four and eight unix programs on 4-core and 8-core machine respectively?
If this can be done, how to know which program is assigned to... (1 Reply)
Say i have a simple example:
root@server # cat /root/scripts/test.sh
while sleep 5
do
echo "how are u mate" >> /root/scripts/test.log
done
root@server #
Instead of using rc.local to start or another script to check status, I would like make it as daemon, where i can do the following:
... (2 Replies)
Hi Gurus
Can someone help me in explaining the below outputs .
psrinfo -p
4
/usr/sbin/psrinfo -pv
The physical processor has 4 virtual processors (0-3)
SPARC64-VI (portid 1024 impl 0x6 ver 0x93 clock 2150 MHz)
The physical processor has 4 virtual processors (8-11)
SPARC64-VI... (3 Replies)
Hi all.
I have a question about linux command to find number of CPU and Core.
I usually use the command dmidecode -t processor to find cpu and core numbers . On this machine with Red Hat 4. 0 when I try to insert the command is returned the error
-bash: dmidecode: command not found
I try to... (8 Replies)
Hi,
I am trying to gather cpu core details and used this script - Solaris & Scripting: Script - Find cpu - model / type / count / core / thread / speed - Solaris Sparc
For auuditing purpose, we want to know how many cores are being used by Oracle, because oracle license will be charged on... (2 Replies)
Discussion started by: solaris_1977
2 Replies
LEARN ABOUT DEBIAN
irunner
IRUNNER(1)IRUNNER(1)NAME
irunner - interactive runner interface
SYNOPSIS
irunner [options] file_to_run
DESCRIPTION
irunner is an interface to the various interactive runners available in IPython's irunner module. It can used to run scripts as if they
where typed up interactively.
The already implemented runners are listed below; adding one for a new program is a trivial task, see the source for examples.
OPTIONS -h, --help
show this help message and exit
--ipython
IPython interactive runner (default).
--python
Python interactive runner.
--sage SAGE interactive runner.
EXAMPLE
irunner.py --python -- --help will pass --help to the python runner. Similarly, irunner.py --ipython -- --interact script.ipy
SEE ALSO ipython(1)AUTHOR
irunner is an extension of Ken Schutte <kschutte-AT-csail.mit.edu>'s script contributed on the ipython-user list:
http://mail.scipy.org/pipermail/ipython-user/2006-May/003539.html
This manual page was written by Bernd Zeimetz <bernd@bzed.de>, for the Debian project (but may be used by others). Modified by Fernando
Perez <Fernando.Perez@berkeley.edu> for inclusion in IPython.
July 15, 2011 IRUNNER(1)
01-27-2010
