The money comes as Calxeda continues work with HP on developing low-power servers and demonstrates a system running on its ARM-based EnergyCore chips.
Calxeda, which earlier this month demonstrated a server
powered by its
energy-efficient ARM-based processors, has collected another $20 million from
investors, bringing the total amount raised from investors to at least $44
According to documents filed
with the federal Securities and
Exchange Commission, Calxeda received the $20 million from seven investors, and
company officials expect to raise another $10 million.
Calxeda is becoming a leader among a
growing number of chip makers who are hoping to push ARM Holdings low-power
chip designs into the server space. Executives with ARM and Calxeda, as well as
other players, such as Marvell Technologies and Nvidia, see the low-power chips
as ideal for energy-efficient servers aimed at such workloads as Web 2.0,
high-performance computing (HPC) and cloud computing.
Such dense computing environments
are looking for high-performing, highly energy-efficient systems to run massive
numbers of small workloads. Intel and Advanced Micro Devices, whose x86-based
processors dominate the server market, also are working to drive down the power
consumption of their chips to handle the growing demands of such hyperscale
environments. ARM and its manufacturing partners also see an opportunity there.
However, ARM executives have said
that it probably wont be until 2014 that chips built on their designs will
start making serious inroads into the server space. By then, processors based
on ARMs Cortex-A15 designs will start hitting the market, and will offer
features important to server makers, including greater virtualization support,
more memory capacity and increased performance.
Intel executives have downplayed
ARMs potential reach into the server space, arguing that such issues as
software compatibility are crucial to server users. However, major OEMs are
beginning to show interest in an alternative server architecture. Dell
officials, aware of the demand from many business customers for more energy-efficient
data center technologies, have said they have systems running on ARM chips in
their labs. However, Forrest Norrod, vice president and general manager of Dells
Data Center Solutions, told eWEEK
last year he questioned whether ARM
and its partners had waited too long to make a move into the data center,
giving Intel and AMD more time to produce more energy-efficient chips.
Hewlett-Packard last fall made a
significant move in that direction. In November 2011, HP officials said they
will use ARM-based chips from Calxeda that are part of a larger initiative
called Project Moonshot,
which is aimed at developing
low-power servers to run in massive compute environments. HP will use Calxedas
EnergyCore system-on-a-chip (SoC) technology, which Calxeda officials said will
result in servers that offer performance similar to current Intel and AMD
processors, but use less power and space, and cost less.
Calxeda, at the Ubuntu Developer and
Cloud Summit earlier this month, showed off a prototype server powered by its
EnergyCore compute blades and running the Ubuntu 12.04 operating system, which
company executives said represented a significant step forward. Karl Freund,
Calxedas vice president of marketing, said at the time
of the show that similar demonstrations
were on the waywith end-user shipments starting this summer, and volume
shipments from HP and other vendors coming in the fall.