<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>I was wondering if Mathematica could use its multiple kernels (under my license I can use 4) in SL and ran Mathematica's own Benchmark test.</div><div><br></div><div>With a single Mathematica kernel my machine (8-core Mac Pro 2.68 GHz, running a 64-bit kernel) scored 3.07 while using all 4 kernels it scored 10.00. If I recall correctly I ran the same test in Leopard, but though four Mathematica kernels were available only one had been used.</div><div><br></div><div>Actually there are 5 Mathematica kernels running, one is called master and the others local. Maybe the master kernel is distributing the tasks?</div><div><br></div><div>Let me add that while the test ran Time Machine was doing a backup.</div><div><br></div><div>Claus</div><div><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">=== System Information ===</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">Machine Name: 4-node homogeneous cluster</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">System: MacOSX-x86-64</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">Date: November 24, 2009</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">Mathematica Version: 7.0.1</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">Benchmark Result: 10.00</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">=== MathematicaMark7 System Comparison ===</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">4-node homogeneous cluster 10.01</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">MacOSX-x86-64</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">2.40 GHz Intel Core2 Q6660 3.91</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">Microsoft Windows (64-bit)</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">2.33 GHz Intel Xeon E5410 3.78</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">Microsoft Windows (64-bit)</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">2.50 GHz Intel Xeon E5420 3.75</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">Linux x86 (64-bit)</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">3.0 GHz Intel Xeon 5160 2.84</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">Microsoft Windows (32-bit)</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">2.66 GHz Intel Xeon 2.14</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">Apple Mac OS 10.4.8 (64-bit)</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">1.6 GHz Intel Xeon 5310 1.88</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">CentOS Linux 4.4 (32-bit)</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">1.4 GHz Itanium 2 1.78</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">Red Hat Linux AS 3.0 (64-bit)</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">2.4 GHz Opteron 250 1.24</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">Sun Solaris 10 (64-bit)</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">2.5 GHz G5 1.22</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">Apple Mac OS 10.4.8 (32-bit)</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">2.4 GHz Pentium 4 1.00</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">Microsoft Windows XP (32-bit)</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; min-height: 12px; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Courier; "><font class="Apple-style-span" face="Palatino" size="6"><span class="Apple-style-span" style="font-size: 24px;">(Faster systems give larger numbers)</span></font></div><div><font class="Apple-style-span" size="6"><span class="Apple-style-span" style="font-size: 24px;"><br></span></font></div>
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