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Parallella, $99 "Linux Supercomputer" (with FPGA) http://anycpu.org/forum/viewtopic.php?f=13&t=66 |
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Author: | BigEd [ Sun Apr 28, 2013 8:03 pm ] |
Post subject: | Parallella, $99 "Linux Supercomputer" (with FPGA) |
This board is interesting in part because it has an array of parallel CPUs on it, but also it has dual-core ARM and a 32-bit-wide DDR3 RAM, on a chip with FPGA capability (the Zynq7010) - so could be a suitable platform for tinkering with CPU designs. Presently available to those who sponsored the kickstarter but intended to be $99 retail. Perhaps late this year? Parallella Overview Quote: Zynq-7020 Dual-core ARM A9 CPU Epiphany Multicore Accelerator (16 or 64 cores) 1GB SDRAM MicroSD Card USB 2.0 (two) Four expansion connectors Ethernet 10/100/1000 HDMI connection Ships with Ubuntu OS Ships with free open source Epiphany development tools that include C compiler, multicore debugger, Eclipse IDE, OpenCL SDK/compiler, and run time libraries. Dimensions are 3.4” x 2.1” via https://news.ycombinator.com/item?id=5557985 |
Author: | MichaelM [ Mon Apr 29, 2013 10:57 pm ] |
Post subject: | Re: Parallella, $99 "Linux Supercomputer" (with FPGA) |
I didn't examine the GitHUB repository extensively, but it appears Parallela's developers have released a set of Verilog FPGA interfaces. |
Author: | ElEctric_EyE [ Sat May 04, 2013 10:28 pm ] |
Post subject: | Re: Parallella, $99 "Linux Supercomputer" (with FPGA) |
I've been looking for prices of the newer Xilinx FPGA SoC offerings, like the Zynq series. Been difficult to find at distributors like Avnet. I assume that Xilinx is still trying to work out the bugs through a very limited release strategy. After all, the Zynq family has been around for at least 6 months now. |
Author: | ElEctric_EyE [ Sat May 04, 2013 10:35 pm ] |
Post subject: | Re: Parallella, $99 "Linux Supercomputer" (with FPGA) |
This is interesting stuff. A simple search led me to the explanation of a 64 core here. They geared it towards C/C++. |
Author: | Chuckt [ Mon May 06, 2013 2:35 am ] |
Post subject: | Re: Parallella, $99 "Linux Supercomputer" (with FPGA) |
I've received a lot of criticism for posting about it on other forums and some of the Xmos users helped me to put it into perspective a little. Quote: "If you think about it for a second, is not that fast. The Core i7-980 @4.5GHz get around 95 GFLOPs compared to Adapteva 16-core at 26 gigaflops. *(even PS3 can do 150GFLOPS, and it has PPC CPU)" The question is whether you can devise algorithms that can make good use of the Epiphany architecture. http://www.xcore.com/forum/viewtopic.php?p=13009#p13009 http://www.natami.net/knowledge.php?b=6 ... order=&x=0 |
Author: | BigEd [ Mon May 06, 2013 9:11 am ] |
Post subject: | Re: Parallella, $99 "Linux Supercomputer" (with FPGA) |
Or the question is whether you could put together a Core i7 design nearly as small, cheap or low-power... It's clear that the major idea here is to get to 64 cores or more. The 16-core device is an early iteration meant to get things going. Cheers Ed |
Author: | BigEd [ Thu Dec 22, 2016 8:56 am ] |
Post subject: | Re: Parallella, $99 "Linux Supercomputer" (with FPGA) |
I see they have recently taped-out a 1024-core version, called Epiphany-V.
64-bit memory architecture 64-bit and 32-bit IEEE floating point support 64 MB of distributed on-chip SRAM 1024 programmable I/O signals Three 136-bit wide 2D mesh NOCs TSMC 16FF process 4.56 Billion transistors, 117mm^2 silicon area Announcement page: https://www.parallella.org/2016/10/05/e ... processor/ HN discussion: https://news.ycombinator.com/item?id=12645661 Technical report: http://www.parallella.org/docs/e5_1024core_soc.pdf (Contains lots of info about the implementation, including the amount of effort it took.) Quote: The Epiphany includes is an in-order dual-issue RISC processor with the following key features: • Compressed 16/32-bit ISA • IEEE-754 compatible floating-point instruction set (FPU) • Integer arithmetic logic instruction set (IALU) • Byte addressable load/store instructions with support for 64-bit single cycle access • 64-word 6 read/3-write port register file Attachment: Epiphany-V-Implementation.png [ 99.73 KiB | Viewed 13145 times ] Attachment: Epiphany-V-Comparison.png [ 98.55 KiB | Viewed 13145 times ] |
Author: | BigEd [ Thu Dec 22, 2016 9:19 am ] |
Post subject: | Re: Parallella, $99 "Linux Supercomputer" (with FPGA) |
From the HN discussion: - the $99 board has sold around 10,000 units. Believed to be priced too high to get substantial volume. - this new chip is going to be lower volume and much higher cost. Not for hobbyists - Architecture reference at http://adapteva.com/docs/epiphany_arch_ref.pdf |
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