ClearSpeed Technology Ltd was a semiconductor company, formed in 2002 to develop enhanced
SIMD processors for use in
high-performance computing and
embedded systems. Based in
Bristol,
UK, the company has been selling its processors since 2005.
[Tokyo Institute of Technology Selects ClearSpeed for Sun Microsystems Supercomputer]
/ref> Its current 192-core CSX700 processor was released in 2008,[ClearSpeed Releases New Advance e710 Accelerator Board and CSX700 Processor]
but a lack of sales has forced the company to downsize
/ref> and it has since delisted from the London stock exchange.[Osborne Clarke advises ClearSpeed on tender offer]
/ref>[ClearSpeed shareholder communications]
Products
The CSX700 processor consists of two processing arrays, each with 96 processing elements. The processing elements each contain a 32/64-bit floating point multiplier, a 32/64-bit floating point adder, 6 KB of SRAM, an integer arithmetic logic unit
In computing, an arithmetic logic unit (ALU) is a Combinational logic, combinational digital circuit that performs arithmetic and bitwise operations on integer binary numbers. This is in contrast to a floating-point unit (FPU), which operates on ...
, and a 16-bit integer multiply–accumulate unit. It currently sells its CSX700 processor on a PCI Express
PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe or PCI-e, is a high-speed serial computer expansion bus standard, designed to replace the older PCI, PCI-X and AGP bus standards. It is the common ...
expansion card with 2 GB of memory, called the Advance e710. The card is supplied with the ClearSpeed Software Development Kit and application libraries.
Related multi-core architectures include Ambric Ambric, Inc. was a designer of computer processors that developed the Ambric architecture. Its Am2045 Massively Parallel Processor Array (MPPA) chips were primarily used in high-performance embedded systems such as medical imaging, video, and signal ...
, PicoChip Picochip was a venture-backed fabless semiconductor company based in Bath, England, founded in 2000. In January 2012 Picochip was acquired by Mindspeed Technologies, Inc and subsequently by Intel.
The company was active in two areas, with two disti ...
, Cell BE, Texas Memory Systems
Texas Memory Systems, Inc. (TMS) was an American corporation that designed and manufactured solid-state disks (SSDs) and digital signal processors (DSPs). TMS was founded in 1978 and that same year introduced their first solid-state drive, foll ...
, and GPGPU stream processors such as AMD FireStream and Nvidia Tesla. ClearSpeed competes with AMD and Nvidia in the hardware acceleration
Hardware acceleration is the use of computer hardware designed to perform specific functions more efficiently when compared to software running on a general-purpose central processing unit (CPU). Any transformation of data that can be calcula ...
market, where computationally intensive applications offload tasks to the accelerator. As of 2009, only the ClearSpeed e710 performs 64-bit arithmetic at its peak computational rate.
History
* In November 2003 ClearSpeed demonstrated the CS301, with 64 processing elements running at 200 MHz, and peak 25.6 FP32 GFLOPS.
* In June 2005 ClearSpeed demonstrated the CSX600, with 96 processing elements running at 210 MHz, capable of 40 GFLOPS.
* In September 2005 John Gustafson joined ClearSpeed as CTO of high performance computing.
* In November 2005 ClearSpeed made its first significant sale of CSX600 processors to the Tokyo Institute of Technology using X620 Advance cards.[
* In November 2006 ClearSpeed X620 Advance cards helped place the Tsubame cluster 7th in the TOP500 list of supercomputers. The cards continue to be used in 2009.
* In September 2007 ClearSpeed licensed its next generation processor to BAE Systems for inclusion in satellite systems.
* In February 2007 ClearSpeed raised £20 million in share placing on the AIM market.ClearSpeed set to raise £20 million in share placing]
// EETimes
* In June 2008 ClearSpeed released the CSX700, combining two CSX600 devices with a PCI Express x16 interface and ECC on all memories, using a lower power 90 nm process. The device delivers 96 GFLOPS for 9 watts with 192 processing elements running at 250 MHz. The device was also released on the Advance e710 card at the same time.[
* In February 2009 ClearSpeed announced a cost-cutting programme following poor financial results for 2008.][
* In July 2009 ClearSpeed delisted from the London Stock Exchange][ and returned £6.9 million to its shareholders.][
* In August 2009 ClearSpeed made its most significant sale through high performance and heterogeneous compute specialists PetaPath.][Petapath announces selection for two PRACE WP8 prototype installations](_blank)
/ref>
References
External links
ClearSpeed Official site
(seem defunct / not working URL.)
*https://books.google.com/books?id=bAeFGuNtGOAC&pg=PA105&dq=ClearSpeed
{{DEFAULTSORT:ClearSpeed
Coprocessors
Embedded systems
SIMD computing
Supercomputers