Civil Engineering Reference
In-Depth Information
Mesh
No of Processors Analysis Time(secs)[Using BLAS]
20x20x20 1 148
4 38.7
8 20.0
16 11.1
32
6.9
40x40x40 16 163
32 84
50x50x50 32 208[70]
64 121
60x60x60 32 439
80x80x80 32 1408
64 703[289]
100x100x100 64
[787]
Figure 12.12
Performance statistics: Program 12.1 (IBM SP2)
300
250
200
150
100
50
0
0
50
100 150
Number of Processors
200
250
300
IDEAL
1 MILLION EQUATIONS
12 MILLION EQUATIONS
Figure 12.13
Speedup versus Number of processors: Program 12.1 (SGI Origin 3000)
Program 12.2 Three dimensional analysis of an elasto-plastic (Mohr-Coulomb) solid.
Compare Program 6.11.
PROGRAM p122
!-----------------------------------------------------------------------
! Program 6.11 three-d strain of an elastic-plastic(Mohr-Coulomb) solid
! using 20-node brick elements; viscoplastic strain method,pcg parallel
! cube_bc ; pick up current x not x = .0 ; load control
!------------------------------------------------------------------------
USE new_library; USE geometry_lib; USE precision; USE utility
USE mp_module; USE timing; USE global_variables1
USE gather_scatter6; IMPLICIT NONE
! ndof,nels,neq,ntot are global - must not be declared
INTEGER::nxe,nye,nze,nn,nr,nip,nodof=3,nod=20,nst=6,i,j,k,iel,plasiters,&
plasits, cjiters,cjits,cjtot, incs,iy,ndim=3,loaded_freedoms, &
