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Programming
Time taken by a child process?
Post 302127466 by SharmaPCS on Wednesday 18th of July 2007 06:14:46 AM
07-18-2007
How could you say there is difference?
Hi...
First read time stamp just before spawning the child process.
and read the time stamp in the child process(not in parent before wait or some other places), Calculate the difference(I hope you can do it simply)...
One thing... How can you say... you are getting different results?
(There will be difference between different runnings of the program. It is dependant on the current system image... like load on system, physical memory available on the system at that time, VM present at that time etc.)
I hope you understood what is happening and what to do...
Happy programming...
Chandu.
First read time stamp just before spawning the child process.
and read the time stamp in the child process(not in parent before wait or some other places), Calculate the difference(I hope you can do it simply)...
One thing... How can you say... you are getting different results?
(There will be difference between different runnings of the program. It is dependant on the current system image... like load on system, physical memory available on the system at that time, VM present at that time etc.)
I hope you understood what is happening and what to do...
Happy programming...
Chandu.
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condor_wait
condor_wait(1) General Commands Manual condor_wait(1) Name condor_wait Wait - for jobs to finish Synopsis condor_wait [-help -version] condor_wait[-debug] [-wait seconds] [-num number-of-jobs] log-file[job ID] Description condor_waitwatches a user log file (created with the logcommand within a submit description file) and returns when one or more jobs from the log have completed or aborted. Because condor_waitexpects to find at least one job submitted event in the log file, at least one job must have been successfully submitted with condor_submitbefore condor_waitis executed. condor_waitwill wait forever for jobs to finish, unless a shorter wait time is specified. Options -help Display usage information -version Display version information -debug Show extra debugging information. -wait seconds Wait no more than the integer number of seconds. The default is unlimited time. -num number-of-jobs Wait for the integer number-of-jobsjobs to end. The default is all jobs in the log file. log file The name of the log file to watch for information about the job. job ID A specific job or set of jobs to watch. If the job IDis only the job ClassAd attribute ClusterId , then condor_wait waits for all jobs with the given ClusterId . If the job IDis a pair of the job ClassAd attributes, given by ClusterId . ProcId , then condor_wait waits for the specific job with this job ID. If this option is not specified, all jobs that exist in the log file when condor_wait is invoked will be watched. General Remarks condor_waitis an inexpensive way to test or wait for the completion of a job or a whole cluster, if you are trying to get a process outside of Condor to synchronize with a job or set of jobs. It can also be used to wait for the completion of a limited subset of jobs, via the -numoption. Examples condor_wait logfile This command waits for all jobs that exist in logfile to complete. condor_wait logfile 40 This command waits for all jobs that exist in logfile with a job ClassAd attribute ClusterId of 40 to complete. condor_wait -num 2 logfile This command waits for any two jobs that exist in logfile to complete. condor_wait logfile 40.1 This command waits for job 40.1 that exists in logfile to complete. condor_wait -wait 3600 logfile 40.1 This waits for job 40.1 to complete by watching logfile , but it will not wait more than one hour (3600 seconds). Exit Status condor_waitexits with 0 if and only if the specified job or jobs have completed or aborted. condor_waitreturns 1 if unrecoverable errors occur, such as a missing log file, if the job does not exist in the log file, or the user-specified waiting time has expired. Author Condor Team, University of Wisconsin-Madison Copyright Copyright (C) 1990-2012 Condor Team, Computer Sciences Department, University of Wisconsin-Madison, Madison, WI. All Rights Reserved. Licensed under the Apache License, Version 2.0. See the Condor Version 7.8.2 Manualor http://www.condorproject.org/licensefor additional notices. condor-admin@cs.wisc.edu September 2012 condor_wait(1)