Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Intel Shows 2.5D FPGA at ISSCC

eetimes.com

Post reply on HN
Print view View original

41–50 of 126 posts

Re: Intel Shows 2.5D FPGA at ISSCC

#41

Post by theevilsharpie »

ploek wrote: post #31
guitarbill wrote: post #29

Earlier quoted context omitted.

I think that's why so many people go with the older HP microservers. Super cheap, nice form factor, just add ECC RAM and HDDs.

Yes! I'm dreading the day when my N36L dies. So far I've only had to replace the PSU fan. And it's weird that no other manufacturer has anything like it. Compact case, not too noisy, houses 4 disks, runs FreeNAS.

Supermicro has a number of servers with a similar form factor.

The closest to a classic HP Microserver is the SuperServer 5028A-TN4, although that one uses the Atom chips that have been recalled.

There's also the much more powerful SuperServer 5028D-TN4T.

They also have a bunch of older models whose names escape me, but can be found by searching for "supermicro mini tower".

Re: Intel Shows 2.5D FPGA at ISSCC

#43

Post by oliwarner »

Getting a bit bored of leaks, press releases and even specs. The proof of a CPU is in how it benchmarks across real workloads.

We're 2-3 weeks away from global release. People buying components NOW are exactly the sort of people AMD should be working their socks off to stop buying Intel parts. But instead of any firm performance figures, we have rumour.

The only reason I can imagine AMD is still keeping the press under cover is because these Zen chips still can't compete where it matters and if AMD lets that be known, everybody will go back to Plan A and buy an i7 6900K.

Re: Intel Shows 2.5D FPGA at ISSCC

#44

Post by m_mueller »

gcp wrote: post #37
m_mueller wrote: post #20

Earlier quoted context omitted.

Exactly. IMO doing GPGPU is actually easier than porting code to use vectorisation, since GPU cores are quite a bit more capable (allow branching/context switches, just with a performance penalty) than the CPUs vector units (vector code AFAIK completely breaks if you try to do an early return on one unit). I'm waiting for the day when the CPU designers learn from GPU and just give us full OpenMP kernel support, such…

Note that AVX512 actually addresses many of the issues that made SIMT code so inefficient on CPUs. It's not just widening the vectors, but also adding predication/masking etc. I do fully agree that SIMT is a much easier programming model than SIMD.

Interesting, TIL. How good is the support for OpenCL on AVX512 processors?

Re: Intel Shows 2.5D FPGA at ISSCC

#45

Post by gcp »

m_mueller wrote: post #44
gcp wrote: post #37

Earlier quoted context omitted.

Note that AVX512 actually addresses many of the issues that made SIMT code so inefficient on CPUs. It's not just widening the vectors, but also adding predication/masking etc. I do fully agree that SIMT is a much easier programming model than SIMD.

Interesting, TIL. How good is the support for OpenCL on AVX512 processors?

So far that's only Knights Landing and friends, but they do seem well supported.

Re: Intel Shows 2.5D FPGA at ISSCC

#46

Post by agumonkey »

oliwarner wrote: post #43

Getting a bit bored of leaks, press releases and even specs. The proof of a CPU is in how it benchmarks across real workloads. We're 2-3 weeks away from global release. People buying components NOW are exactly the sort of people AMD should be working their socks off to stop buying Intel parts. But instead of any firm performance figures, we have rumour. The only reason I can imagine AMD is still keeping the press und…

You don't trust the presentation demo AMD made a few weeks ago ?

Re: Intel Shows 2.5D FPGA at ISSCC

#47

Post by gcp »

oliwarner wrote: post #43

Getting a bit bored of leaks, press releases and even specs. The proof of a CPU is in how it benchmarks across real workloads. We're 2-3 weeks away from global release. People buying components NOW are exactly the sort of people AMD should be working their socks off to stop buying Intel parts. But instead of any firm performance figures, we have rumour. The only reason I can imagine AMD is still keeping the press und…

Isn't it typical to lift the NDA's exactly on the launch date? They're rather consistent here IMHO.

Re: Intel Shows 2.5D FPGA at ISSCC

#48

Post by B1FF_PSUVM »

vosper wrote: post #40
coldtea wrote: post #39

Earlier quoted context omitted.

> AMD said its upcoming Zen x86 core fits into a 10 percent smaller die area than Intel’s currently shipping second-generation 14nm processor. Sounds totally irrelevant.

Maybe the implication is that a 10% smaller die means fewer transistors per chip, and therefore lower failure rate per chip, meaning that they get more working chips out of each wafer or something? And maybe that makes them less expensive, so that they could undercut Intel?

Chip fabrication costs are usually a direct value per mm2 the chip takes up in the wafer.

Besides that, a smaller area is also good for yield (% of chips that test out OK out of all fab'ed, in case random defects occur in any of the many processing steps.)

Re: Intel Shows 2.5D FPGA at ISSCC

#49

Post by B1FF_PSUVM »

watersb wrote: post #24
iand675 wrote: post #16

So the latest AMD cores seem like they might be more competitive... does anyone know which AMD processors are likely to support ECC memory? My one big gripe with Intel CPUs is that they currently only support ECC memory for non-consumer chips. I run a personal ZFS cluster and am more concerned about data integrity / cost than I am about pure CPU performance.

I am re-building my ZFS array with consumer parts. GIGABYTE GA-X150M-PRO ECC Kingston 16GB ECC DIMM KVR21E15D8/16 Pentium G4600 CPU Toys arrive in a couple of days. Total outlay was $220. When I first built my storage box, in 2009, the AMD CPUs all supported ECC DRAM, but I could not find a motherboard-chipset-BIOS setup that would actually implement it.

> AMD CPUs all supported ECC DRAM, but I could not find a motherboard-chipset-BIOS setup

You sure? Around that time I plumped down a Phenom X4 and ECC RAM on an ASUS board, and I thought it supported ECC - the chipset was AMD too.

Re: Intel Shows 2.5D FPGA at ISSCC

#50

Post by ploek »

theevilsharpie wrote: post #41
ploek wrote: post #31

Earlier quoted context omitted.

Yes! I'm dreading the day when my N36L dies. So far I've only had to replace the PSU fan. And it's weird that no other manufacturer has anything like it. Compact case, not too noisy, houses 4 disks, runs FreeNAS.

Supermicro has a number of servers with a similar form factor. The closest to a classic HP Microserver is the SuperServer 5028A-TN4, although that one uses the Atom chips that have been recalled. There's also the much more powerful SuperServer 5028D-TN4T. They also have a bunch of older models whose names escape me, but can be found by searching for "supermicro mini tower".

That looks promising, thanks for the tip!
Post reply on HN