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Problems starting parallel fluent on linux

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Old   June 7, 2008, 21:06
Default Problems starting parallel fluent on linux
  #1
HSeldon
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Hi, I have a dual core (one physical CPU) machine and when I try to startup fluent with 2 processes, it simply doesnīt load. I tried the command: fluent 2d -t2

Any advice or help? Thank you in advance.

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Old   June 11, 2008, 12:19
Default Re: Problems starting parallel fluent on linux
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red lemon
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DO YOU HAVE MORE THAN 1 SERIAL OR AT LEAST 1 PARALLEL LICENSE? WHAT IS THE RETURN MESSAGE?
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Old   June 11, 2008, 18:01
Default Re: Problems starting parallel fluent on linux
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HSeldon
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Thanks for responding. The problem is not with the license. It tries to connect both cores with ethernet connection. Tried to change the flag that indicates the connection type, changed to MPI but nothing happened. Could you give an example to start fluent in the command line for two processes (remember Iīm talking about a single PC with a dual core CPU)

Thank you!
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Old   June 12, 2008, 17:15
Default Re: Problems starting parallel fluent on linux
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red lemon
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fluent 3d -pnet -t2 should be fine to start fluent. -tN is the just the number of processes to start each of which requires a license. Does serial fluent start ok? What is the error message when trying to start a parallel session?
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Old   June 13, 2008, 02:25
Default Re: Problems starting parallel fluent on linux
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HSeldon
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First of all, thanks for the response. Yes, serial fluent starts and runs ok. Basically, when I start parallel with fluent -t2 itīs freeze trying to connect the other core via ethernet, so I think thats the problem. What does -pnet flag means?

Thank you again. (Tomorrow Iīll try that command and will tell you)
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Old   June 13, 2008, 08:35
Default Re: Problems starting parallel fluent on linux
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red lemon
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-pnet is just the socket connect ie -p for the parallel option and net for the ethernet argument.
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Old   June 13, 2008, 11:25
Default Re: Problems starting parallel fluent on linux
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HSeldon
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I think thatīs the problem because if fluent is trying to connect both cores with ethernet, it will never can! I mean, why ethernet if Iīm using a single PC with dual-core CPU? Thanks.
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