Hi all,
How do i run a command in parallel 50 times and capturing the result of each run in a separate file
Eg: myApp arg1 > run1.txt
myApp arg1 > run2.txt
:::::::::::::::::::::::::
:::::::::::::::::::::::::
myApp arg1 > run50.txt
The above way is sequential.
... (3 Replies)
hey i have to implement copy command in parallel in c language.
i dont know how to create a new directory in destination.
if anything u know related to this help me (1 Reply)
Hi,
I am using Ubuntu 10.04 LTS 32-bit. I would like to execute a command in two or more servers (multiple remote hosts) in parallel. The commands "shmux" or "on" are not available in Ubuntu. Could anyone tell me what other equivalent commands available in Ubuntu to accomplish this task? (1 Reply)
I have one parent directory and within that parent directory there are several other sub-directories and within those sub-directories there are several other "large number" of sub-directories.
All the sub directories have a shell script in them with a common file name execute_command.sh I want... (4 Replies)
Hi all, I have the requirement to generate the file containing following command
eval /path/ dsjob -logdetail projectname JOBNAME /path/
1. The file contains the above command say about 150 times i,e only the JOBNAME changes in every command
2. The commands must be written in such a way... (2 Replies)
Hi All,
We have a table that has to store around 80-100 million records. The table is partitioned by a column called Market Code. There are 30 partitions each corresponding to one MRKT_CD.
The source of this table is a join between 3-4 other tables. We are loading this table through SQLPLUS... (2 Replies)
Hello,
im having bash script with
while ***
command1 &&
command2 &&
command3 &&
done
i want to ask how i can prevent overloading server, by waiting untill all commands complete? any low resources intensive command like "wait" - i dont know if exist? (2 Replies)
Hi,
I am running below code
For I in $var
do
.......some line of code.......
nohup Sqlplus apps/apps <<EOF &
My_proc($I)
Exit
EOF
done
Nohup and & is used for parallel processing.
Can someone help in determining if the procedure with different arguments
Was called paralley or... (3 Replies)
Hello,
I have a 4 core machine.
Here is my initial script
cd /work/
python script.py input.txt output.txt 1 2 3
This script runs for 1.5hrs.
So I read across the web and figured out that you can use GNU parallel to submit multiple jobs using parallel. But I am not sure if I can run... (4 Replies)
Hi all.
Long time!!
Hope you're doing well..
I've stumbled on a peculiar siutaion here, and would expect help from this forum on a clean resolution.
We are running an rm and find command simultaneously from two different Unix sessions of the same user(let's say USER01) and on the same... (3 Replies)
Discussion started by: kumarjt
3 Replies
LEARN ABOUT DEBIAN
mdm.screen
MDM.SCREEN(1) User Commands MDM.SCREEN(1)NAME
mdm.screen - run a command under mdm-master
SYNOPSIS
mdm.screen [-c iospec] [-n slaves] command
DESCRIPTION
mdm.screen runs command under mdm-master so that mdm-run commands in command can run in parallel.
This program is a part of the Middleman System (mdm).
OPTIONS
The mdm.screen command has two optional options.
-c iospec
The iospec file (see below).
-n slaves
The number of mdm-slave process to start (default 6).
THE IOSPEC FILE
mdm-master uses the iospec file to decide whether two commands interfere with each other, and it only runs two commands at the same time if
they do not interfere.
Each line of the iospec file specifies the I/O behavior of a program, unless the line starts with a '#' character, in which case the line
is treated as comments and ignored. The format is as follows:
program spec spec ...
program names the program whose behavior you are specifying. For each spec element, the first character indicates usage, and the remaining
characters indicate resource.
A resource that starts with a '-' character represents the argument of the corresponding program option. A resource that is an empty
string represents a program argument. A resource that is not empty and does not start with a '-' character represents the resource string
itself.
A usage is typically an upper-case character. If two commands access the same resource with different usage, mdm-master will not run these
two commands at the same time. Furthermore, if a command access a resource with 'W' usage, mdm-master will not run it with any command
that access the same resource in any way (including 'W'). There is a special case: if usage is '0' and resource starts with a '-' charac-
ter, it means that the resource program option does not take any arguments.
All programs has an implicit spec 'Rglobal', so if you mark a program as 'Wglobal', it will not run while any other command is running.
Here is an example to help clarify matters. Suppose we have the following iospec file:
cc W-o 0-c R
rm W
Then these two commands can run at the same time:
cc -o pa pa.o lib.o
cc -o pb pb.o lib.o
These two commands cannot run at the same time:
cc -o pa.o -c pa.c
cc -o pa pa.o lib.o
And these two commands also cannot run at the same time:
cc -o pa pa.o lib.o
rm pa
EXIT STATUS
The exit status of mdm.screen is 0.
EXAMPLE
Here is what you do to decompress all files with .gz extension in the current directory tree.
mdm.screen find . -iname '*.gz' -exec mdm-run gunzip {} ;
Since we run find under mdm.screen and invoking gunzip under mdm-run, we specify that we wish to run the gunzip commands in parallel.
SEE ALSO mdm-run(1), mdm-sync(1), ncpus(1)Linux 2009-03-06 MDM.SCREEN(1)