From: Markus Fischer Newsgroups: comp.parallel.pvm Subject: Re: Lock up (on NT) Date: Wed, 23 Jun 1999 13:30:19 +0200 Organization: University of Mannheim Message-Id: <3770C54B.64C78E21@markus-fischer.de> References: <930127299.19290.0.nnrp-09.9e98207d@news.demon.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Xref: ukc comp.parallel.pvm:8509 By PVM design you must not have more than 31 processes per node. m. Aaron Ridout wrote: > I have written my first and fairly simple PVM based program which can run a > variable number of instances of 3 different programs. > We are running on NT4 (mainly SP3) workstation. > When I run a small number (<10 processes per machine) all is well, as I > increase the number of processes to >32 instances occasionally some > processes get stuck in mroute(), but not always. As the number of processes > increases, so does the frequency of lock-up. > This can be in any pmv function from an initial call to pvm_parent() to the > final call to pvm_exit(). I have changed most other calls to their > equivalent functions with time-outs to circumvent this. > I have re-compiled both PVM & my programs with Multi-Threading - no change. > What am I doing wrong? > Aaron > > ___________________________________________________ > Aaron Ridout (Aaron.Ridout@signal.co.uk ) > Signal Computing Ltd. > Registered in London No 1672944 > Tel: +44 1483 579900 Fax: +44 1483 562836 > 20 Nugent Road, The Surrey Research Park, > Guildford, Surrey, GU2 5AF, UK. > ___________________________________________________ -- ------------------------------------------------------------------------------------ Dipl. Inf. Markus Fischer Tel.: +49 621 292-1621 University of Mannheim Fax: +49 621 292-5597 Computer Architecture email:markus@markus-fischer.de B6, 26 68159 Mannheim