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тАО09-01-2005 06:10 AM
тАО09-01-2005 06:10 AM
Current successes or opinions on Itanium
Points to all for responding.
Thanks in advance !!!
Tim
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тАО09-01-2005 06:20 AM
тАО09-01-2005 06:20 AM
Re: Current successes or opinions on Itanium
there were some minor quirks like pa-risc java jre in the ignite bundle and such, but I haven't yet heard of anything worse than that.
for me a very positive thing is the reduced startup times due to the firmware-based cpu and chipset tests, it's really saving tens of minutes for larger systems, which means reduced downtime in case things go wrong.
(And it really appears the tests are being done, too *g*)
[on the other hand I don't really trust the itanium roadmap yet, there's no more workstations available, and even microsoft appears to drop the support for IA64 now)
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тАО09-01-2005 06:24 AM
тАО09-01-2005 06:24 AM
Re: Current successes or opinions on Itanium
Performance vs cost on PA line compared to performance vs cost on Itanium line.
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тАО09-01-2005 06:44 AM
тАО09-01-2005 06:44 AM
Re: Current successes or opinions on Itanium
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тАО09-01-2005 06:51 AM
тАО09-01-2005 06:51 AM
Re: Current successes or opinions on Itanium
xxxMHZ to xxxMHZ ?
(Assigning 7s on points so the magic rabbit does not show up yet.)
Thanks !!
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тАО09-01-2005 07:05 AM
тАО09-01-2005 07:05 AM
Re: Current successes or opinions on Itanium
The only thing You have to look out for is the L2 cache sizes, many systems are only offered in 1 or 6 MB configs, while TPC runs are done with the 9MB models. I was told we referred specially to these versions as there's a huge difference in performance with 33% more cache. :)
But I bet a 1.6GHz PA-8800 would easily stomp a 1.6GHz Itanium. ;)
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тАО09-01-2005 11:19 PM
тАО09-01-2005 11:19 PM
Re: Current successes or opinions on Itanium
My personal opinion is that with Itanium processor HP wanted a substantial evolution from the old RISC architecture, that is aged more than 15 years.
The new architecture is based on the EPIC (Explicitly Parallel Instruction Computing) that lets the processor execute more instructions per cycle than the current RISCs. For performances consideration,
have a look to this site, where itanium seems to stand in the 7th position:
http://www.top500.org/lists/plists.php?Y=2005&M=06
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тАО09-02-2005 04:22 AM
тАО09-02-2005 04:22 AM
Re: Current successes or opinions on Itanium
but actually, the 'epic' is just a small cutoff of the EV8/9 alpha design, which most definitely is RISC.
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тАО09-02-2005 04:23 AM
тАО09-02-2005 04:23 AM
Re: Current successes or opinions on Itanium
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тАО09-05-2005 04:14 AM
тАО09-05-2005 04:14 AM
Re: Current successes or opinions on Itanium
We have a cluster of two RP8xxx with 8 processors each, who was replaced by a two nodes RX4600 with 3 processors each.
We were using Oracle 9i in RP8xxx and changed to Oracle 9i RAC in Itanium
Performance of batch programas changed to 3 times in Itanium.
We have problem in using Oracle Transparent Gateway between Itanium platform and PA-Risc, but it's just an Oracle problem.
Installation of RAC was quite easy and we spent 30 days to migrate data from old platform to Itanium.