<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>Great. Thank you Zhao.</span></div><div><br></div> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Zhao Zhang <zhaozhang@uchicago.edu><br> <b><span style="font-weight: bold;">To:</span></b> Emalayan Vairavanathan <svemalayan@yahoo.com> <br><b><span style="font-weight: bold;">Cc:</span></b> Kazutomo Yoshii <kazutomo@mcs.anl.gov>; "swift-devel@ci.uchicago.edu" <swift-devel@ci.uchicago.edu>; MosaStore <mosastore@googlegroups.com> <br> <b><span style="font-weight: bold;">Sent:</span></b> Tuesday, 6 March 2012 12:41 PM<br> <b><span style="font-weight:
bold;">Subject:</span></b> Re: [Swift-devel] Torus rank<br> </font> </div> <br>Hi, Emalayan<br><br>Emalayan Vairavanathan wrote:<br>> Hi Kaz,<br>><br>> I found the following about tours rank from<br>> <a href="http://wiki.mcs.anl.gov/zeptoos/index.php/FAQ" target="_blank">http://wiki.mcs.anl.gov/zeptoos/index.php/FAQ</a> and want to double check<br>> with you still this information valid. <br>><br>><br>> Torus rank:-<br>><br>><br>> A torus rank is a number identifying a compute node within a<br>> whole partition. In a way, it is much "nicer" than a pset rank<br>> since it is unique within a job and it also starts from 0.<br>><br>> - A shell script can easily calculate it from other fields:<br>> TORUS_RANK=`echo $BG_PSETORG | awk "{print \\$1 + \\$2 * $BG_XSIZE + \<br>> \\$3 *
$BG_XSIZE * $BG_YSIZE}"<br>><br>> It would be great if you can make sure that the tours rank is unique<br>> within a partition and always starts from zero regardless of the<br>> following.<br>><br>> - Partition size (fraction of pset / multiple of psets / both )<br>> - Platform (Surveyor / Intrepid)<br>> - Kernel profiles.<br>><br>yes, this is true regardless of partition size, platform, and ZeptoOS<br>kernel profiles(zeptoos, zepto-vn-eval, and the one you use for mosa).<br><br>best<br>zhao<br>><br>> (Note: I am asking this in order to figure out a easy way to deploy<br>> MosaStore at BG/P at large scale. I did few tests with different<br>> partition size in Surveyor and it seems the tours rank is unique and<br>> always starts from zero.)<br>><br>> Thank you<br>> Emalayan<br>><br>><br>> <br>>
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