Wednesday Dec 08, 2010

Sun Blade X6275 M2 Delivers Best Fluent (MCAE Application) Performance on Tested Configurations

This Manufacturing Engineering benchmark highlights the performance advantage the Sun Blade X6275 M2 server module offers over IBM, Cray, and SGI solutions as shown by the ANSYS FLUENT fluid dynamics application.

A cluster of eight of Oracle's Sun Blade X6275 M2 server modules delivered outstanding performance running the FLUENT 12 benchmark test suite.

  • The Sun Blade X6275 M2 server module cluster delivered the best results in all 36 of the test configurations run, outperforming the best posted results by as much as 42%.
  • The Sun Blade X6275 M2 server module demonstrated up to 76% performance improvement over the previous generation Sun Blade X6275 server module.

Performance Landscape

In the following tables, results are "Ratings" (bigger is better).
Rating = No. of sequential runs of test case possible in 1 day: 86,400/(Total Elapsed Run Time in Seconds)

The following table compares results on the basis of core count, irrespective of processor generation. This means that in some cases, i.e., for the 32-core and 64-core configurations, systems with the Intel Xeon X5670 six-core processors did not utilize quite all of the cores available for the specified processor count.


FLUENT 12 Benchmark Test Suite

Competitive Comparisons

System
Processors Cores Benchmark Test Case Ratings
eddy
417k
turbo
500k
aircraft
2m
sedan
4m
truck
14m
truck_poly
14m

Sun Blade X6275 M2 16 96 9340.5 39272.7 8307.7 8533.3 903.8 786.9
Best Posted 24 96

7562.4
797.0 712.9
Best Posted 16 96 7337.6 33553.4 6533.1 5989.6 739.1 683.5

Sun Blade X6275 M2 11 64 6306.6 27212.6 5592.2 5158.2 568.8 518.9
Best Posted 16 64 5556.3 26381.7 5494.4 4902.1 566.6 518.6

Sun Blade X6275 M2 8 48 4620.3 19093.9 4080.3 3251.2 376.0 359.4
Best Posted 8 48 4494.1 18989.0 3990.8 3185.3 372.7 354.5

Sun Blade X6275 M2 6 32 4061.1 15091.7 3275.8 3013.1 299.5 267.8
Best Posted 8 32 3404.9 14832.6 3211.9 2630.1 286.7 266.7

Sun Blade X6275 M2 4 24 2751.6 10441.1 2161.4 1907.3 188.2 182.5
Best Posted 6 24 1458.2 9626.7 1820.9 1747.2 185.1 180.8
Best Posted 4 24 2565.7 10164.7 2109.9 1608.2 187.1 180.8

Sun Blade X6275 M2 2 12 1429.9 5358.1 1097.5 813.2 95.9 95.9
Best Posted 2 12 1338.0 5308.8 1073.3 808.6 92.9 94.4



The following table compares results on the basis of processor count showing inter-generational processor performance improvement.


FLUENT 12 Benchmark Test Suite

Intergenerational Comparisons

System
Processors Cores Benchmark Test Case Ratings
eddy
417k
turbo
500k
aircraft
2m
sedan
4m
truck
14m
truck_poly
14m

Sun Blade X6275 M2 16 96 9340.5 39272.7 8307.7 8533.3 903.8 786.9
Sun Blade X6275 16 64 5308.8 26790.7 5574.2 5074.9 547.2 525.2
X6275 M2 : X6275 16
1.76 1.47 1.49 1.68 1.65 1.50

Sun Blade X6275 M2 8 48 4620.3 19093.9 4080.3 3251.2 376.0 359.4
Sun Blade X6275 8 32 3066.5 13768.9 3066.5 2602.4 289.0 270.3
X6275 M2 : X6275 8
1.51 1.39 1.33 1.25 1.30 1.33

Sun Blade X6275 M2 4 24 2751.6 10441.1 2161.4 1907.3 188.2 182.5
Sun Blade X6275 4 16 1714.3 7545.9 1519.1 1345.8 144.4 141.8
X6275 M2 : X6275 4
1.61 1.38 1.42 1.42 1.30 1.29

Sun Blade X6275 M2 2 12 1429.9 5358.1 1097.5 813.2 95.9 95.9
Sun Blade X6275 2 8 931.8 4061.1 827.2 681.5 73.0 73.8
X6275 M2 : X6275 2
1.53 1.32 1.33 1.19 1.31 1.30

Configuration Summary

Hardware Configuration:

8 x Sun Blade X6275 M2 server modules, each with
4 Intel Xeon X5670 2.93 GHz processors, turbo enabled
96 GB memory 1333 MHz
2 x 24 GB SATA-based Sun Flash Modules
2 x QDR InfiniBand Host Channel Adapter
Sun Datacenter InfiniBand Switch IB-36

Software Configuration:

Oracle Enterprise Linux Enterprise Server 5.5
ANSYS FLUENT V12.1.2
ANSYS FLUENT Benchmark Test Suite

Benchmark Description

The following description is from the ANSYS FLUENT website:

The FLUENT benchmarks suite comprises of a set of test cases covering a large range of mesh sizes, physical models and solvers representing typical industry usage. The cases range in size from a few 100 thousand cells to more than 100 million cells. Both the segregated and coupled implicit solvers are included, as well as hexahedral, mixed and polyhedral cell cases. This broad coverage is expected to demonstrate the breadth of FLUENT performance on a variety of hardware platforms and test cases.

The performance of a CFD code will depend on several factors, including size and topology of the mesh, physical models, numerics and parallelization, compilers and optimization, in addition to performance characteristics of the hardware where the simulation is performed. The principal objective of this benchmark suite is to provide comprehensive and fair comparative information of the performance of FLUENT on available hardware platforms.

About the ANSYS FLUENT 12 Benchmark Test Suite

    CFD models tend to be very large where grid refinement is required to capture with accuracy conditions in the boundary layer region adjacent to the body over which flow is occurring. Fine grids are required to also determine accurate turbulence conditions. As such these models can run for many hours or even days as well using a large number of processors.

Key Points and Best Practices

  • ANSYS FLUENT has not yet been certified by the vendor on Oracle Enterprise Linux (OEL). However, the ANSYS FLUENT benchmark tests have been run successfully on Oracle hardware running OEL as is (i.e. with NO changes or modifications).
  • The performance improvement of the Sun Blade X6275 M2 server module over the previous generation Sun Blade X6275 server module was due to two main factors: the increased core count per processor (6 vs. 4), and the more optimal, iterative dataset partitioning scheme used for the Sun Blade X6275 M2 server module.

See Also

Disclosure Statement

All information on the FLUENT website (http://www.fluent.com) is Copyrighted 1995-2010 by ANSYS Inc. Results as of December 06, 2010.

Tuesday Jun 29, 2010

Sun Fire X2270 M2 Achieves Leading Single Node Results on ANSYS FLUENT Benchmark

Oracle's Sun Fire X2270 M2 server produced leading single node performance results running the ANSYS FLUENT benchmark cases as compared to the best single node results currently posted at the ANSYS FLUENT website. ANSYS FLUENT is a prominent MCAE application used for computational fluid dynamics (CFD).

  • The Sun Fire X2270 M2 server outperformed all single node systems in 5 of 6 test cases at the 12 core level, beating systems from Cray and SGI.
  • For the truck_14m test, the Sun Fire X2270 M2 server outperformed all single node systems at all posted core counts, beating systems from SGI, Cray and HP. When considering performance on a single node, the truck_14m model is most representative of customer CFD model sizes in the test suite.
  • The Sun Fire X2270 M2 server with 12 cores performed up to 1.3 times faster than the previous generation Sun Fire X2270 server with 8 cores.

Performance Landscape

Results are presented for six of the seven ANSYS FLUENT benchmark tests. The seventh test is not a practical test for a single system. Results are ratings, where bigger is better. A rating is the number of jobs that could be run in a single day (86,400 / run time). Competitive results are from the ANSYS FLUENT benchmark website as of 25 June 2010.

Single System Performance

ANSYS FLUENT Benchmark Tests
Results are Ratings, Bigger is Better
System Benchmark Test
eddy_417k turbo_500k aircraft_2m sedan_4m truck_14m truck_poly_14m
Sun Fire X2270 M2 1129.4 5391.6 1105.9 814.1 94.8 96.4
SGI Altix 8400EX 1338.0 5308.8 1073.3 796.3 - -
SGI Altix XE1300C 1299.2 5284.4 1071.3 801.3 90.2 -
Cray CX1 1060.8 5127.6 1069.6 808.6 86.1 87.5

Scaling of Benchmark Test truck_14m

ANSYS FLUENT truck_14m Model
Results are Ratings, Bigger is Better
System Cores Used
12 8 4 2 1
Sun Fire X2270 M2 94.8 73.6 41.4 21.0 10.4
SGI Altix XE1300C 90.2 60.9 41.1 20.7 9.0
Cray CX1 (X5570) - 71.7 33.2 18.9 8.1
HP BL460 G6 (X5570) - 70.3 38.6 19.6 9.2

Comparing System Generations, Sun Fire X2270 M2 to Sun Fire X2270

ANSYS FLUENT Benchmark Tests
Results are Ratings, Bigger is Better
System Benchmark Test
eddy_417k turbo_500k aircraft_2m sedan_4m truck_14m truck_poly_14m
Sun Fire X2270 M2 1129.4 5374.8 1103.8 814.1 94.8 96.4
Sun Fire X2270 981.5 4163.9 862.7 691.2 73.6 73.3

Ratio 1.15 1.29 1.28 1.18 1.29 1.32

Results and Configuration Summary

Hardware Configuration:

Sun Fire X2270 M2
2 x 2.93 GHz Intel Xeon X5670 processors
48 GB memory
1 x 500 GB 7200 rpm SATA internal HDD

Sun Fire X2270
2 x 2.93 GHz Intel Xeon X5570 processors
48 GB memory
2 x 24 GB internal striped SSDs

Software Configuration:

64-bit SUSE Linux Enterprise Server 10 SP 3 (SP 2 for X2270)
ANSYS FLUENT V12.1.2
ANSYS FLUENT Benchmark Test Suite

Benchmark Description

The following description is from the ANSYS FLUENT website:

The FLUENT benchmarks suite comprises of a set of test cases covering a large range of mesh sizes, physical models and solvers representing typical industry usage. The cases range in size from a few 100 thousand cells to more than 100 million cells. Both the segregated and coupled implicit solvers are included, as well as hexahedral, mixed and polyhedral cell cases. This broad coverage is expected to demonstrate the breadth of FLUENT performance on a variety of hardware platforms and test cases.

The performance of a CFD code will depend on several factors, including size and topology of the mesh, physical models, numerics and parallelization, compilers and optimization, in addition to performance characteristics of the hardware where the simulation is performed. The principal objective of this benchmark suite is to provide comprehensive and fair comparative information of the performance of FLUENT on available hardware platforms.

About the ANSYS FLUENT 12 Benchmark Test Suite

    CFD models tend to be very large where grid refinement is required to capture with accuracy conditions in the boundary layer region adjacent to the body over which flow is occurring. Fine grids are required to also determine accurate turbulence conditions. As such these models can run for many hours or even days as well using a large number of processors.

See Also

Disclosure Statement

All information on the FLUENT website (http://www.fluent.com) is Copyrighted 1995-2010 by ANSYS Inc. Results as of June 25, 2010.

Friday Nov 20, 2009

Sun Blade X6275 cluster delivers leading results for Fluent truck_111m benchmark

A Sun Blade 6048 Modular System with 16 Sun Blade X6275 Server Modules configured with QDR InfiniBand cluster interconnect delivered outstanding performance running the FLUENT benchmark test suite truck_111m case.

  • A cluster of Sun Blade X6275 server modules with 2.93 GHz Intel X5570 processors achieved leading 32-node performance for the largest truck test case, truck_111m.
  • The Sun Blade X6275 cluster delivered the best performance for the 64-core/8-node, 128-core/16-node, and 256-core/32-node configurations, outperforming the SGI Altix result by as much as 8%.
  • NOTE: These results are will not be published on the Fluent website as Fluent has stopped accepting results for this version.

Performance Landscape


FLUENT 12 Benchmark Test Suite - truck_111m
  Results are "Ratings" (bigger is better)
  Rating = No. of sequential runs of test case possible in 1 day = 86,400 sec/(Total Elapsed Run Time in seconds)

System (1)
cores Benchmark Test Case
truck
111m

Sun Blade X6275, 32 nodes 256 240.0
SGI Altix ICE 8200 IP95, 32 nodes 256 238.9
Intel Whitebox, 32 nodes 256 219.8

Sun Blade X6275, 16 nodes 128 129.6
SGI Altix ICE 8200 IP95, 16 nodes 128 120.8
Intel Whitebox, 16 nodes 128 116.9

Sun Blade X6275, 8 nodes 64 64.6
SGI Altix ICE 8200 IP95, 8 nodes 64 59.8
Intel Whitebox, 8 nodes 64 57.4

(1) Sun Blade X6275, X5570 QC 2.93GHz, QDR
Intel Whitebox, X5560 QC 2.8GHz, DDR
SGI Altix ICE 8200, X5570 QC 2.93GHz, DDR

Results and Configuration Summary

Hardware Configuration:

    16 x Sun Blade X6275 Server Module ( Dual-Node Blade, 32 nodes ) each node with
      2 x 2.93GHz Intel X5570 QC processors
      24 GB (6 x 4GB, 1333 MHz DDR3 dimms)
      On-board QDR InfiniBand Host Channel Adapters, QNEM

Software Configuration:

    OS: 64-bit SUSE Linux Enterprise Server SLES 10 SP 2
    Interconnect Software: OFED ver 1.4.1
    Shared File System: Lustre ver 1.8.1
    Application: FLUENT V12.0.16
    Benchmark: FLUENT 12 Benchmark Test Suite

Benchmark Description

The benchmark test are representative of typical user large CFD models intended for execution in distributed memory processor (DMP) mode over a cluster of multi-processor platforms.

Key Points and Best Practices

Observations About the Results

The Sun Blade X6275 cluster delivered excellent performance on the largest Fluent benchmark problem, truck_111m.

The Intel X5570 processors include a turbo boost feature coupled with a speedstep option in the CPU section of the advanced BIOS settings. This, under specific circumstances, can provide a cpu upclocking, temporarily increasing the processor frequency from 2.93GHz to 3.2GHz.

Memory placement is a very significant factor with Nehalem processors. Current Nehalem platforms have two sockets. Each socket has three memory channels and each channel has 3 bays for DIMMs. For example if one DIMM is placed in the 1st bay of each of the 3 channels the DIMM speed will be 1333 MHz with the X5570's altering the DIMM arrangement to an off balance configuration by say adding just one more DIMM into the 2nd bay of one channel will cause the DIMM frequency to drop from 1333 MHz to 1067 MHz.

About the FLUENT 12 Benchmark Test Suite

The FLUENT application performs computational fluid dynamic analysis on a variety of different types of flow and allows for chemically reacting species. transient dynamic and can be linear or nonlinear as far

  • CFD models tend to be very large where grid refinement is required to capture with accuracy conditions in the boundary layer region adjacent to the body over which flow is occurring. Fine grids are required to also determine accurate turbulence conditions. As such these models can run for many hours or even days as well using a large number of processors.
  • CFD models typically scale very well and are very suited for execution on clusters. The FLUENT 12 benchmark test cases scale well.
  • The memory requirements for the test cases in the FLUENT 12 benchmark test suite range from a few hundred megabytes to about 25 GB. As the job is distributed over multiple nodes the memory requirements per node correspondingly are reduced.
  • The benchmark test cases for the FLUENT module do not have a substantial I/O component. component. However performance will be enhanced very substantially by using high performance interconnects such as InfiniBand for inter node cluster message passing. This nodal message passing data can be stored locally on each node or on a shared file system.

See Also

Current FLUENT 12 Benchmark:
http://www.fluent.com/software/fluent/fl6bench/fl6bench_6.4.x/

Disclosure Statement

All information on the Fluent website is Copyrighted 1995-2009 by Fluent Inc. Results from http://www.fluent.com/software/fluent/fl6bench/ as of November 12, 2009 and this presentation.

About

BestPerf is the source of Oracle performance expertise. In this blog, Oracle's Strategic Applications Engineering group explores Oracle's performance results and shares best practices learned from working on Enterprise-wide Applications.

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