A Parallel Non-Staggered Navier-Stokes Solver ...

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Details of a computer cluster built using Pentium 4 processors with a fast ethernet ... from Pentium 4 machines and a 100MBits/second fast ethernet network are.

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Temperature Staggered Non-staggered, compact Non-staggered, sparse Non-staggered, elliptic Difference 2 Order h

Pressure Staggered Non-staggered, compact Non-staggered, sparse Non-staggered, elliptic 0.01Difference 2 Order h

1

0.01

Error

Error

0.1

0.001

0.0001 0.0001

1e-05 0.001

0.01

1e-06 0.001

0.1

Grid size

0.01

0.1

Grid size

U-Velocity

V-Velocity

Staggered

Staggered

0.1 Non-staggered,

compact Non-staggered, sparse Non-staggered, elliptic Difference 2 Order h

0.1 Non-staggered,

compact Non-staggered, sparse Non-staggered, elliptic Difference 0.01 2 Order h Error

Error

0.01

0.001

0.001

0.0001

0.0001 0.001

1e-05 0.001

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Grid size

0.1

0.01

0.1

Grid size

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1500

P3 1.2Ghz Compaq DS10 P4 1.6Ghz 850chipset

MFLOPS

1000

500

0 100

1000

10000

1e+05

1e+06

1e+07

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Array size

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6

MPI HPF Speedup

MFLOPS

800

8

600

400

200 0

4 HPF Linear

2

0 0

HŸ ‡ ­_‰Š‡3aféf– R„_‡3rpjlvh oqv ‰lkmfAnõ­_‡3nˆ‡3‰Š‰lfa‰ \ ]_^ ªa`,—Hª µ¥‡3nˆ‡ ‰l‰lfa‰{|‡–kRjlfAnq«uxRrpv ‘mfao avRyYf­•fAnq« oq\ ­•]_fA^ f–ª y•>“ª jsrpe1ždµŽ‡ h_y½|µ9œ ¡w v np›‡3h_af8v hQ[ ´ h˜‡ rp„Ynˆ‡ ‰av hRkmfaArpjlvh ð˜v–“ “jsrped½’µ$œVav ›­˜‡ npf–yrpv±‰ljlh_fa‡3n…oq­•faf–yM„_­ û v˜

2

4 6 No. Processors

8

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10

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5

10 No. Processors

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