Example 561: 8 prolate spheroidal ventricular elements processed in parallel

Finite elasticity analysis of an 8 prolate element mesh using parallel processing techniques. The global stiffness matrix is assembled from element stiffness matrices which are calculated concurrently on a network of Silicon Graphics and Dec Alpha workstations. IMPORTANT: This example requires 'proxies' on the alpha and/or a '.rhosts' file on the SGI network so that the 'rsh' command will be able to spawn the remote processes automatically (see your system manager for these privileges).

The comfile run by this example is as follows:

#Example 561:  Finite elasticity analysis of heart inflation with 8 prolate 
#              elements. Galerkin FEM equations solved using LU with parallel
#              computations of element stiffness matrices.
#
#IMPORTANT:
#This example requires 'proxies' on the alpha and/or a '.rhosts' file on the 
#SGI network so that the 'rsh' command will be able to spawn the remote
#processes automatically (see your system manager for these privileges).
#
fem define coordinates;r;parallel_proc;example #set up a finite elasticity
fem define nodes;r;;example                    #problem with 8 prolate elements
fem define bases;r;;example                    #undergoing inflation (see other
fem define element;r;;example                  #examples for details)
fem define fibre;r;;example                    
fem define element;r;;example fibre
fem define equation;r;;example
fem define material;r;;example
fem define initial;r;;example
fem define solve;r;;example       #set up solution procedure to use 
#                         !PARALLEL ELEMENT STIFFNESS COMPUTATIONS
#                         !on 2 hosts (ESU12 and ESV25). Use default CONNIDs
#                         !and PORT #s and SPAWN PROCESSES AUTOMATICALLY and
#                         !open the sockets after 20 secs 
#                         !(just to make sure that remote processes are set up)
fem solve incr 0.1 iter 2 #solve just 2 iterations to show how it works
fem def wind
fem draw line
fem draw line def dot
fem

Files used by this example are:

Name                      Modified     Size

example_561.com           10-Apr-2000  1.5k
parallel_proc.ipbase      10-Apr-2000  4.3k
parallel_proc.ipcoor      10-Apr-2000  758 
parallel_proc.ipelem      10-Apr-2000  3.3k
parallel_proc.ipelfb      10-Apr-2000  1.8k
parallel_proc.ipequa      02-May-2004  2.2k
parallel_proc.ipfibr      30-Jan-2001  3.0k
parallel_proc.ipinit      05-Dec-2002  2.1k
parallel_proc.ipmate      05-Dec-2002  5.9k
parallel_proc.ipnode      10-Apr-2000  4.9k
parallel_proc.ippara      12-Nov-2002  5.0k
parallel_proc.ippara_old  10-Apr-2000  3.4k
parallel_proc.ipsolv      16-Aug-2010  2.5k
parallel_proc.ipsolv.old  13-Apr-2007  2.4k
test_output_old.com       10-Apr-2000   17 

Download the entire example:

Name                      Modified     Size

examples_5_56_561.tar.gz  17-Aug-2010   10k

Html last generated: Sun Mar 6 05:50:26 2016

Input last modified: Mon Aug 16 11:19:15 2010