KAIST Computational Fluid Dynamics Lab. Setting up Small Grid Testbed & Using Globus, MPICH-G2 Korea Advanced Institute of Science and Technology Div. of Aerospace Engineering Dehee Kim 2002. 9. 25 Computational Fluid Dynamics Lab Computational Fluid Dynamics Lab . .
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Setting up Small Grid Testbed & Using Globus, MPICH-G2
Computational Fluid Dynamics Lab. Setting up Small Grid Testbed & Using Globus, MPICH-G2 Korea Advanced Institute of Science and Technology Div. of Aerospace Engineering Dehee Kim 2002. 9. 25. Contents. Introduction to GT 2.0 and MPICH-G2 How to install Globus CFD Lab. Grid Testbed - PowerPoint PPT Presentation
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KA
IST C
om
puta
tional Flu
id D
ynam
ics Lab
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Setting up Small Grid Testbed& Using Globus, MPICH-G2
Korea Advanced Institute of Science and TechnologyDiv. of Aerospace Engineering
Major improvements over the Globus Toolkit 1.1.3 and 1.1.4 releases
Data Grid Components MDS Components GRAM Components Packaging Technology Security Components Various changes for supporting MPICH-G2
KA
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MPICH-G2
● What is MPICH-G2?
grid-enabled implementation of the MPI v1.1 standard converts data in messages sent between machines of different architectures supports multiprotocol communication
● How does MPICH-G2 differ from MPICH-G?
Increased bandwidth Reduced latency for intra-machine messaging Increased latency for inter-machine (TCP) messaging
KA
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Construction of Grid Testbed
Installation Procedure
1. Set up small PC cluster system - rsh, NFS, automount, ntp, … - back end nodes with hard disk
2. Install F77, F90 compiler - Absoft F90, pgf90, etc. - Set environment variables and path
KA
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Construction of Grid Testbed
If you does not install a Fortran compiler before the installation of GT 2.0, you will see following message …..Checking for minix/config.hChecking for volatile… yesRunning device-specific setup program*#Globus device overrode C compiler setting*#F90 compiler not present; disabling F90 supportDisabling long double(not supported by Globus data Conversion library)Checking whether cross-compiling……..
KA
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Construction of Grid Testbed
3. Install Job Queuing System - PBS, CONDOR, LSF, etc. - 2 rpm files(for PBS) - Front end : /usr/spool/pbs/server_priv/nodes
- Back end : /usr/spool/pbs/mom_priv/config $clienthost cluster.hpcnet.ne.kr
2-2-D adjoint sensitivity analysisD adjoint sensitivity analysis 2-2-D airfoil designD airfoil design Design for drag minimization of RAE 2822 airfoilDesign for drag minimization of RAE 2822 airfoil Grid system Grid system : 383 : 383 x 65 C type x 65 C type Flow conditions Flow conditions : : M=0.729, AoA=2.31M=0.729, AoA=2.31oo, Re = 6.5 x 10, Re = 6.5 x 1066
10 Hicks-Henne functions10 Hicks-Henne functions
x
-Cp
0 0.25 0.5 0.75 1
-1
-0.5
0
0.5
1
1.5
RAE2822Designed
InviscidViscousRAE 2822
Pressure distributionPressure distribution airfoil before and after designairfoil before and after design
3-3-D adjoint sensitivity analysisD adjoint sensitivity analysis 3-3-D wing designD wing design Design for drag minimization of ONERA M6 wingDesign for drag minimization of ONERA M6 wing Grid system Grid system : 193 : 193 x 49 x 33 C-O type x 49 x 33 C-O type Flow conditions Flow conditions : : M=0.84, AoA=3.06M=0.84, AoA=3.06oo, Re = 11.7 x 10, Re = 11.7 x 1066
50 Hicks-Henne functions50 Hicks-Henne functions
X
Y
Z
X
Y
Z
ONERA M6ONERA M6 Designed wingDesigned wing
Numerical Test on Testbed
KA
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Computation Time
Design Optimization : Computation TimeDesign Optimization : Computation Time Flow analysis around 2-D airfoil and design optimizationFlow analysis around 2-D airfoil and design optimization
deviceresource
Flow analysis (ch_p4)
Design(ch_p4)
Flow analysis(globus2)
Design(globus2)
I 158.0 467.7 158.7 478.9
II 388.8 1166.7 392.9 1170.4
III 410.9 1432.1
Flow analysis around 3-D wing and design optimizationFlow analysis around 3-D wing and design optimization((case IIIcase III)) Flow analysis : Flow analysis : 2047.72047.7 Design : Design : 15674.0 15674.0