Standard Performance Evaluation Corporation

Accepted Measurement Devices

Multiple SPEC benchmarks provide infrastructure software to connect, control, and collect data from power and temperature measurement devices.  All measurement devices must be equipped with at least one of the communication interfaces supported by the benchmark.  When ordering devices for use with this benchmark, be aware that  some of these devices can be ordered in multiple configurations, including configurations with no interface or an unsupported communication interface.

Power analyzers are available with wide ranges of capabilities and capacities.  Computer systems have a wide range of power requirements.  Global standards for line voltage are quite different from one country to another.  Therefore, users should be aware that any one combination of the three above contributing factors may not provide the capability or required accuracy to measure very high or sometimes very low power.

The list of analyzers below have been tested and found to function well for a relatively narrow range of power provider and power consumption conditions, essentially for volume server class computers in the one to four socket range.   The list of accepted power analyzers below also indicates which analyzers have specific limitations which impact compliance with the run and reporting rules for SPEC benchmarks.  When using one of these analyzers, one must ensure that the listed limitations are not violated.  Results will be invalidated in cases where one of these analyzers was used and the system under test (SUT) exceeded the current limits of said analyzer. 

Prior to purchase of a power analyzer, SPEC recommends that the user consult with a qualified electrical engineer..

List of Accepted Power Analyzers
Manufacturer	Model	Minimum PTD version	Restrictions on Use with SPECpower_ssj2008
Chroma	66202	v1.3.8	Valid only for low shunt ranges (0.01, 0.1, 0.4, 2.0 ARMS).  Can not use autoranging. Valid only for readings where the wattage reading is at least 41.25% of the wattage range.
Infratek	107A-1	v1.2	Valid only for load currents less than half the selected current range in order to satisfy the required minimum crest factor value of 3.  Can not use autoranging.
Instek	GPM-8212	v1.2	Valid only for load currents less than 10A.    Can not use autoranging.
Yokogawa	WT210	v1.0	Can not use autoranging.
ZES Zimmer	LMG450 (pdf)	v1.0	May only use one of the channels at a time. Can not use autoranging.
ZES Zimmer	LMG95 (pdf)	v1.2	Can not use autoranging.
ZES Zimmer	LMG500 (pdf)	v1.2	May only use one of the channels at a time.  Can not use autoranging.
Xitron	2802 (pdf)	v1.3	May only use one of the channels at a time.  Can not use autoranging.

List of Accepted Temperature Sensors
Manufacturer	Model	Minimum PTD version	Restrictions on Use with SPECpower_ssj2008
Digi	Watchport/H	v1.0
Temperature@lert	Temperature@lert	v1.0

SPEC Acceptance Process for Power Analyzers
A process exists for a SPEC member or licensee to add software support for a power analyzer to the SPEC benchmark infrastructure and to submit tests for review and possible inclusion by SPEC as an accepted device.   Please see  http://www.spec.org/power_ssj2008/docs/SPECpower_ssj2008-Acceptance_Process.html  for the acceptance process.