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NEMO Memory Benchmarks

    RAMspeed is an open source tool for benchmarking memory and cache on a system. Version 3.3.0 was used for testing. The command that was used to run the tests is as follows:
      ./ramsmp -b 6 -g 4 -p 2
     -b 6 indicates to run benchmark number 6 (FLOATmem)
     -g 4 indicates number of GBytes to use
     -p 2 indicates number of processes to start
    DDR-SDRAM Info
    PC-1600: running at 100 MHz using DDR-200 chips should get 1.600 GByte/s bandwidth per channel
    PC-2100: running at 133 MHz using DDR-266 chips should get 2.133 GByte/s bandwidth per channel
    PC-2700: running at 166 MHz using DDR-333 chips should get 2.667 GByte/s bandwidth per channel
    PC-3200: running at 200 MHz using DDR-400 chips should get 3.200 GByte/s bandwidth per channel

    Test1: Nemo Prototype White-Box Solution

  • MSI Neo2-F Motherboard
  • AMD Opteron 175 2.2GHz
  • 2x 1GB ECC Registered PC3200 double-sided RAM
  • nforce3 Ultra chipset
Dual Channel Configuration:
Instruction Set Test Bandwidth
MMX Copy: 2069.67 Mb/s
MMX Scale: 2452.00 Mb/s
MMX Add: 3164.09 Mb/s
MMX Triad: 3143.93 Mb/s
MMX Average: 2707.42 Mb/s
Single Channel Configuration:
Instruction Set Test Bandwidth
MMX Copy: 1131.15 Mb/s
MMX Scale: 1068.18 Mb/s
MMX Add: 1338.79 Mb/s
MMX Triad: 1338.56 Mb/s
MMX Average: 1219.17 Mb/s

    Test2: Medusa Slave Node

  • intel Motherboard
  • Intel Pentium 3 1.0GHz
  • 2x 256MB ECC Registered PC133 double-sided RAM
  • intel chipset
Single Channel Configuration:
Instruction Set Test Bandwidth
FL-Point Copy: 240.12 Mb/s
FL-Point Scale: 251.15 Mb/s
FL-Point Add: 286.53 Mb/s
FL-Point Triad: 285.46 Mb/s
FL-Point Average: 265.81 Mb/s

    Test3: Nemo Prototype Provided By ASA

  • Supermicro H8DAR-T Motherboard
  • 1x AMD Opteron 265 1.8GHz
  • 4x 1GB ECC Registered PC3200 double-sided RAM
Dual Channel Configuration: 4x 1GB
Instruction Set Test Bandwidth
FL-Point Copy: 2521.87 Mb/s
FL-Point Scale: 2526.58 Mb/s
FL-Point Add: 2972.41 Mb/s
FL-Point Triad: 2988.70 Mb/s
FL-Point Average: 2752.39 Mb/s
Dual Channel Configuration: 2x 1GB
Instruction Set Test Bandwidth
FL-Point Copy: 2599.61 Mb/s
FL-Point Scale: 2392.03 Mb/s
FL-Point Add: 3016.89 Mb/s
FL-Point Triad: 2990.41 Mb/s
FL-Point Average: 2749.74 Mb/s
Single Channel Configuration: 2x 1GB
Instruction Set Test Bandwidth
FL-Point Copy: 1683.51 Mb/s
FL-Point Scale: 1677.77 Mb/s
FL-Point Add: 1913.39 Mb/s
FL-Point Triad: 1913.68 Mb/s
FL-Point Average: 1797.09 Mb/s
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