Count on Intel
In addition, OEMs are increasingly bringing GPUs into their HPC
systems. At the SC show, Cray, Dell, Hewlett-Packard, NEC and SGI
all showcased systems running Tesla GPUs, while Appro demonstrated its
HyperPower GPU performance clusters, which feature both Nvidia Tesla GPUs and
Intel's Xeon CPUs.
Brookwood said Intel's upcoming Nehalem EX processor will be a great
product, but questioned whether it could substitute for GPUs in these HPC
workloads.
"When you look at the raw floating-point power of the Nehalem EX versus
the raw floating-point power of ATI ... it's
no contest," he said. "These GPUs have been honed over many generations
to crank out floating-point performance, and they just have gigaflops and
teraflops to spare when compared with what Nehalem EX can provide. And that's
not a slam at Nehalem EX."
It's this growing demand for GPGPU capabilities and the new applications that
will grow up around them that will have Intel continue to work on the
foundation of Larrabee, the analysts said.
"They're very persistent, and they will persevere until they get it
right," Brookwood said.
Intel is also patient, Spooner said. "Intel's taking a very long view
with the new business segments it's targeting, including graphics, phones [and]
consumer electronics," he said. "I'm sure the goal is to deliver
hardware over time."
In the meantime, Intel will be able to take what it's learned from Larrabee,
including the development of many-core chips, and apply it elsewhere. Indeed,
Intel researchers announced Dec. 2 a prototype of a 48-core
CPU that they call a "single-chip cloud computer" with 10 to 20
times the computing power of a current Core processor.
The move to make Larrabee a development platform also makes sense, the
analysts said.
"Without the programmers, nothing of this kind would be worth anything,"
Brookwood said. "You need to give programmers a platform they can
explore."
Given the fits and starts of Larrabee's history, it made sense for Intel to
dump it and start over, he said.
"Intel deserves a lot of credit for knowing when to bite that bullet
and not keep beating a dead horse," Brookwood said.









