Newsgroups: comp.parallel
From: Eric Doenges <erd@regent.e-technik.tu-muenchen.de>
Subject: Does P4 loose messages ?
Summary: Problem with P4 message passing - some messages are lost
Keywords: P4
Organization: Technische Universitaet Muenchen, Germany
Date: Fri, 24 Feb 1995 14:04:10 GMT
Message-ID: <3if12r$bv7@hpsystem1.informatik.tu-muenchen.de>

I have the following problem - I have to modify an existing parallel logic
simulator, based on the P4 library version 1.4 to send diagnostic messages
to a graphical frontend. The simulator and frontend run on a network of
DECstation 5000s. The way I do it is that each simulator sends these
messages to the controller, which sends the data to the frontend via a
socket. The communication between the controller and the frontend seems to
work perfectly, i.e. everything that is sent actually arives intact. However,
when I send large amounts of diagnostic data (actually very large amounts,
every time the output of an element changes, I send a message) from each
simulator to the controller, some of the data never arrives at the controller.

So my question is - does anybody know if P4 looses messages, or am I just
missing something obvious ?
--
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     _/_/_/ _/_/   _/_/                                                   (oo)
    _/     _/ _/  _/ _/  Eric Doenges                             /--------\/
   _/_/   _/_/   _/ _/   (erd@regent.e-technik.tu-muenchen.de)   * o|     ||
  _/     _/ _/  _/ _/                                               ||----||


