Launching FLUENT V6.3 in Network Parallel - MPICH2
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1.This document assumes that you have read the document Configuring FLUENT Network Parallel - FLUENT 6.3.26 (see Related Solution 2018376) and have configured your cluster correctly. If not then do not proceed until you have done so. 2.Open up a Command Prompt and change to the directory where your case, data file and the host.txt file you creater previously. 3.Type: fluent version -tnprocs -cnf=hosts.txt Where version would be 2d, 3d, 2ddp, or 3ddp (dp stands for double-precision) Where - tnprocs is the number of processors you wish to use. In the example below 4 processors are chosen. Where -cnf=hosts.txt specifies the hosts file, which contains a list of the computers on which you want to run the parallel job. If the hosts file is not located in the directory where you are typing the startup command, you will need to supply the full pathname to the file. The actual command might look like this is: fluent 3d -t4 -cnf=host.txt The first time you launch MPICH2 you will be asked to input your username and password. Do this once only. If you change your username and password FLUENT will again prompt you to enter your username and password. If your username and password are verified FLUENT will launch with the following confirmation in the FLUENT window. _________________________ IMPORTANT NOTE: If you will be compiling and/or loading UDF's while running FLUENT Network Parallel please read this important document, "Compiling and Loading User Defined Functions" (see Related Solution 2017096) as there are extra steps that must be taken prior to compiling and/or loading the UDF. For a complete guide to parallel processing see Chapter 31 of the FLUENT 6.3.26 User's Manual. |
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