tag:blogger.com,1999:blog-65714702024-02-09T02:51:03.905+09:00Random thoughts on my interestUnknownnoreply@blogger.comBlogger2125tag:blogger.com,1999:blog-6571470.post-7403616018416942652014-06-23T00:13:00.000+09:002014-06-23T00:14:06.221+09:00Microsoft Catapult, Intel's Xeon-FPGA, Altera's floating point DSP, they are going to same direction<p>Intel is planning to manufacutre CPU-FPGA hybrid chip based on Xeon E5. They have announced shortly before to <a href="http://www.eetimes.com/document.asp?doc_id=1263080">make 14nm FPGAs for Altera</a>. So, some presses reported that Intel's Xeon-FPGA chip likely has an FPGA from Altera.<br />
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<p>Microsoft is <a href="http://www.wired.com/2014/06/microsoft-fpga/">trying</a> to integrate FPGA and CPU in datacenters for Bing. Coincidentally, they use Altera Stratix V FPGAs for their pilot project. Also, Microsoft hopes to deploy the system in production in 2015.</p><br />
<p>2015? Altera announced Floating Point DSP blocks for FPGA. Coincidentally, they said that the DSP blocks will be <a href="http://www.eetimes.com/document.asp?doc_id=1322042">available in Startix 10 FPGAs in 2015</a>.</p><br />
<p>So, Microsoft is very likely to use Startix 10 with floating point DSP blocks for their deployment. On next step, Microsoft would use Xeon-FPGA chip for their deployment.</p>Unknownnoreply@blogger.com1tag:blogger.com,1999:blog-6571470.post-52090761984693137502014-06-15T02:37:00.004+09:002014-06-15T02:37:48.869+09:00Searching compressed text<p><a href="http://www.dcc.uchile.cl/~gnavarro/ps/spe04.pdf">Lzgrep</a> search compressed text without uncompressing. If it is faster than zgrep which uncompress the file before do grep, it's usable. This paper say lzgrep is upto 50% faster than zgrep. I roughly tested on apache logs which is compressed by gzip. On most of case, lzgprep is only 10% faster than zgrep.</p>Unknownnoreply@blogger.com0