They can, but obviously Power brings something that makes them preferable for some situations. I don't think they buy them because they are Power fanbois. ;)
Thanks Ian! Always like to read those updates, even though I am not in any danger of buying or leasing an IBM mainframe (: Question: how are these chips and other components cooled? Are they intended to be liquid-cooled, and designed with that assumption? Lastly, that memory-sharing technology is fascinating - is that a heritage from the Cell processor days?
Most Power chips are air cooled. The only exception to this rule are the supercomputer clusters where they need to fit many chips in a small amount of space.
Power server are distinct from mainframes. Look at the z15 if you are interested in mainframe chip - they are liquid cooled.
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plopke - Monday, August 17, 2020 - link
Aah hotchips one of the most fun times of a year to read Anandtech all tough i only vaguely understand half of the stuff being talked about xDJon Tseng - Monday, August 17, 2020 - link
nb I thought he said 50-100ns worse latency for the funky off-server DMA (but I could be wrong!)zamroni - Monday, August 17, 2020 - link
Processor for FUD-ed DB2 database customers. I am sure the core banking applications can work with X86-64 version of DB2.Desierz - Monday, August 17, 2020 - link
They can, but obviously Power brings something that makes them preferable for some situations. I don't think they buy them because they are Power fanbois. ;)Meteor2 - Thursday, August 20, 2020 - link
We do!Well, really it's because it's cost-prohibitive to move to x86.
Cheesecake16 - Monday, August 17, 2020 - link
2 Petabytes of addressable RAMLord of the Bored - Monday, August 17, 2020 - link
Hell to the yes.eastcoast_pete - Monday, August 17, 2020 - link
Thanks Ian! Always like to read those updates, even though I am not in any danger of buying or leasing an IBM mainframe (:Question: how are these chips and other components cooled? Are they intended to be liquid-cooled, and designed with that assumption?
Lastly, that memory-sharing technology is fascinating - is that a heritage from the Cell processor days?
Meteor2 - Thursday, August 20, 2020 - link
Ours are water-cooled.thunng8 - Monday, August 24, 2020 - link
Most Power chips are air cooled. The only exception to this rule are the supercomputer clusters where they need to fit many chips in a small amount of space.Power server are distinct from mainframes. Look at the z15 if you are interested in mainframe chip - they are liquid cooled.
Desierz - Monday, August 17, 2020 - link
8 SMT threads? Wow. I knew they had 4 on earlier Power CPUs, but 8 per core, that's pretty hardcore, pardon the pun.PixyMisa - Tuesday, August 18, 2020 - link
They've had SMT8 for a while now - it was introduced with POWER8.Krysto - Tuesday, August 18, 2020 - link
The Confidential Computing/homomorphic encryption stuff looks great.Wardrive86 - Wednesday, August 19, 2020 - link
So are they combining The 8 128 bit SIMDS and the 4 MMA units to achieve the 128 sp flops per core?Wardrive86 - Thursday, August 20, 2020 - link
Oh nevermind just reread it. Im assuming no accumulate then inside the MMA. Floating point monster!Oxford Guy - Tuesday, September 1, 2020 - link
"16 physical cores, but 15 will be enabled. Improves economics of yield"How long until we see a non-harvested SKU I wonder.