NDPF Node Performance

Node performance figures for the NDPF farm nodes

Note performance in the NDPF is internally expressen in GHzHr-equivalents, where a 1 GHzHrEquiv should be the integer performance of a single-core Pentium-3 processor with a clock frequency of 1GHz. To convert this into SpecInt-2000 numbers, a conversion factor of 410 has been applied: 1GHzHrEquiv corresponds to 410 SI2k, although this is a known understatement of the actual performance. Since this number has been hard-coded in all conversion script that publish accounting data to the outside world, it means that from now on the "official" SI2k ratings we get from vendors and our own tests must be converted to GHzHrEquiv values using this factor (410), and then be entered in the appropriate configuration file /etc/pbsaccdb.conf.

As of 2006-09-01, the PRD facility contains 546 kSI2k

As of 2006-12-18, the PRD facility contains 785 kSI2k.

Node type: pizza0 (node18)

These system are dual-Pentium3 CPUs at 0.933 GHz, on an MSI motherboard. Equivalent systems rate at approximately 403-429 SI2k. The overhead incurred by running two simultaneous jobs has not been taken into account.

pbsaccdb factor: 416/410 = 1.015

0 (zero) systems of this type contribute 0 kSI2k.

Node type: AMDNCF (gfrc)

These systems are dual Athon MP2000+ systems. Equivalent systems rate at approx. 690 SI2k (the overhead incurred by running two simultaneous jobs has not been taken into account). Note that our own performance tests using the D0 MC application actually showed a true speed doubling compared to pizza0, so a factor of 2 would not have been unreasonable.

pbsaccdb factor: 690/410 = 1.68

0 (zero) systems of this type contribute 0 kSI2k.

Node type: Halloween (hall)

These systems are dual Xeon 2.8 GHz systems with 1MB L2 cache. Hyperthreading is not used. Equivalent systems rate at 1288 SI2k.

pbsaccdb factor: 1288/410 = 3.14

27 systems with 54 cores contribute 70 kSI2k.

Node type: Bulldozer (bull)

These systems are dual Xeon 3.2 GHz with 2 MB L2 cache. Hyperthreading is not used. Equivalent systems rate at 1555 (Dell PowerEdge 1850).

pbsaccdb factor: 1555/410 = 3.79

34 systems with 68 cores contribute 106 kSI2k.

Node type: Luilak-1 (lui1) and Luilak-2 (lui2)

These systems are Dell PowerEdge 1950 (Intel Xeon processor 5150, 2.66GHz) rated at 2764 when used with one process (specification by Dell, July 2006). With four simultaneous jobs, this degrades to 2240.

pbsaccdb factor: 2240/410 = 5.46

2*34 systems with 272 cores contribute 609 kSI2k.

Note on power consumption

For node wn-lui2-023 the following currents were measured under various conditions (OS: CentOS3.8/i386)

standby (off)	0.17A	39W
startup peak	>1.50A	345W
setup screen or unloaded system	0.9 - 1.0A	230W
with 4x burnP6 and 4x "burnMMX P"	1.35A	310W
with continuous disk activity	1.1A	250W

The line voltage is approx. 229V (see mail "stroomgebruik grid resources" by wimh of 27-Sep-06 16:13).

Node type: DELL PowerEdge 1435 SC

This is a new series of nodes fitted with dual/dual AMD Opteron 2220 processors. The following tests were done on CentOS 4.4.

standby (off)	0.2A	50W
unloaded system	0.9A	210W
with 4x burnP6 and 4x "burnMMX P"	1.25A	286W