By: Henrik S (henrik.stahl.delete@this.oracle.nospam.com.nothanks), November 10, 2008 8:09 am
Room: Moderated Discussions
Michael S (already5chosen@yahoo.com) on 11/10/08 wrote:
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>Henrik S (henrik.stahl@nospam.oracle.nothanks.com) on 11/10/08 wrote:
>---------------------------
>>The best L5420 score with JRockit (from NEC) is *much* higher: 1010 ssj_ops/watt
>>http://www.spec.org/power_ssj2008/results/res2008q3/power_ssj2008-20080714-00064.html
>>
>>This is on Windows (will yield a slightly higher score), with different BIOS settings
>>and with 2x4 GB DIMMs instead of 8x2.
>>
>>Interesting enough, the NEC submission has a higher peak score (288502 vs 267804)
>>despite the fact that it is uses a smaller Java heap and the slower (?) 4 GB DIMMs.
>>This is counterintiutive to me and makes me suspect that the AMD Xeon submission
>>is on a machine with a less optimized BIOS.
>>
>
>Did you find a specification for NEC ECO CENTER in English?
No.
>I couldn't.
>If, like Supermicro 6015C-MTB, it is based on San Clemente chipset then Blackford/Seaburg
>based experience with regard to which memory is faster could not apply. It's possible
>that a couple of dual-rank DIMMs is the fastest memory option for that chipset.
Supermicro result here for reference:
http://www.spec.org/power_ssj2008/results/res2008q4/power_ssj2008-20080917-00079.html
-- Henrik
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>Henrik S (henrik.stahl@nospam.oracle.nothanks.com) on 11/10/08 wrote:
>---------------------------
>>The best L5420 score with JRockit (from NEC) is *much* higher: 1010 ssj_ops/watt
>>http://www.spec.org/power_ssj2008/results/res2008q3/power_ssj2008-20080714-00064.html
>>
>>This is on Windows (will yield a slightly higher score), with different BIOS settings
>>and with 2x4 GB DIMMs instead of 8x2.
>>
>>Interesting enough, the NEC submission has a higher peak score (288502 vs 267804)
>>despite the fact that it is uses a smaller Java heap and the slower (?) 4 GB DIMMs.
>>This is counterintiutive to me and makes me suspect that the AMD Xeon submission
>>is on a machine with a less optimized BIOS.
>>
>
>Did you find a specification for NEC ECO CENTER in English?
No.
>I couldn't.
>If, like Supermicro 6015C-MTB, it is based on San Clemente chipset then Blackford/Seaburg
>based experience with regard to which memory is faster could not apply. It's possible
>that a couple of dual-rank DIMMs is the fastest memory option for that chipset.
Supermicro result here for reference:
http://www.spec.org/power_ssj2008/results/res2008q4/power_ssj2008-20080917-00079.html
-- Henrik