Newsgroups: comp.parallel.pvm From: "Umesh Kumar V. Rajasekaran" Subject: pvm task hanging with large number of messages Organization: ECECS Department, University of Cincinnaiti Date: Wed, 25 Mar 1998 17:22:17 +0000 Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="------------81B91E23B74E2EB4E8A57CC9" Message-ID: <35193D49.C266A45A@ececs.uc.edu> --------------81B91E23B74E2EB4E8A57CC9 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi, I wrote a small ping application which sends messages from one task(master) to another task(slave). The master just keeps sending messages like 100 packets of a particular size. The master and slave works well, when I send 100 packets. when I made master send 1000 packets to the slave, it hangs. I guess pvm uses shared memory to communicate with the daemon. and after a certain time, the shared memory buffer becomes full I guess. Is there some other explanation of this hanging ?. thanks for any help Umesh Umesh Kumar V. Rajasekaran Department of Electrical and Computer Science and Computer Engineering University of Cincinnati email: urajasek@ececs.uc.edu URL: http://www.ececs.uc.edu/~urajasek/ --------------81B91E23B74E2EB4E8A57CC9 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Hi,

    I wrote a small ping application which sends messages from one task(master) to another task(slave). The master just keeps sending messages like 100 packets of a particular size. The master and slave works well, when I send 100 packets. when I made master send 1000 packets to the slave, it hangs. I guess pvm uses shared memory to communicate with the daemon.  and after a certain time, the shared memory buffer becomes full I guess.

Is there some other explanation of this hanging ?.

thanks for any help
Umesh 

Umesh Kumar V. Rajasekaran
Department of Electrical and Computer Science and Computer Engineering
University of Cincinnati
email: urajasek@ececs.uc.edu  URL: http://www.ececs.uc.edu/~urajasek/
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