<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Courier New, courier, monaco, monospace, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1495979662971_13255" dir="ltr">I wonder if I am encountering a related problem. I use the Study feature and pre-compute ERP-images using an i7 7500 pc @ 2.7 GHz with 16 GB of RAM. The processing is at first rapid, but progressively slows, and would take days or weeks to finish if I let it do so. But here too, only about a third of the RAM is used. Moreover, I ran this same Study parameter pre-compute on an older Intel Pentium @2.2 GHz (also with 16 GB of RAM) and it completed in less than 6 hours. A Dell technician speculated about some possible MATLAB-i7 incompatibility. Any thoughts?</div><div id="yui_3_16_0_ym19_1_1495979662971_13834" dir="ltr">Davida </div><div id="yui_3_16_0_ym19_1_1495979662971_13254" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1495979662971_13512" dir="ltr"><br></div><div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1495979662971_13157" style="display: block;"> <div id="yui_3_16_0_ym19_1_1495979662971_13156" style="font-family: Courier New, courier, monaco, monospace, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1495979662971_13155" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1495979662971_13154" dir="ltr"> <font id="yui_3_16_0_ym19_1_1495979662971_13159" face="Arial" size="2"> <hr size="1" id="yui_3_16_0_ym19_1_1495979662971_13158"> <b><span style="font-weight:bold;">From:</span></b> drcoben <drcoben@gmail.com><br> <b><span style="font-weight: bold;">To:</span></b> mmiyakoshi@ucsd.edu <br><b><span style="font-weight: bold;">Cc:</span></b> 'eeglablist' <eeglablist@sccn.ucsd.edu><br> <b><span style="font-weight: bold;">Sent:</span></b> Thursday, May 11, 2017 1:08 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [Eeglablist] speed of processing<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1495979662971_13581"><br><div id="yiv7096393949"><style><!--
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--></style><div id="yui_3_16_0_ym19_1_1495979662971_13580"><div class="yiv7096393949WordSection1" id="yui_3_16_0_ym19_1_1495979662971_13579"><div class="yiv7096393949MsoNormal" id="yui_3_16_0_ym19_1_1495979662971_13578">We have started working with higher density resting eeg’s with 64 channels. All is well until we process granger calculations. This often takes hours to process with 8-11 components with 600,000 frames of data. My pc is an i7 7500 @ 2.9 ghz with 16 gb of ram. However, when I look at the ram running during the operation it only uses about 5 gb. </div><div class="yiv7096393949MsoNormal"> </div><div class="yiv7096393949MsoNormal">Does anyone know how to speed up the processing so this operation will take less time?</div><div class="yiv7096393949MsoNormal"> </div><div class="yiv7096393949MsoNormal">Thanks,</div><div class="yiv7096393949MsoNormal"> </div><div class="yiv7096393949MsoNormal">Rob Coben, PhD</div><div class="yiv7096393949MsoNormal"><a name="_MailEndCompose" href="" rel="nofollow"> </a></div><span></span><div><div><blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in;"><div><div><div class="yiv7096393949MsoNormal"> </div></div></div><div class="yiv7096393949MsoNormal"><br>_______________________________________________<br>Eeglablist page: <a href="http://sccn.ucsd.edu/eeglab/eeglabmail.html" target="_blank" rel="nofollow">http://sccn.ucsd.edu/eeglab/eeglabmail.html</a><br>To unsubscribe, send an empty email to <a href="mailto:eeglablist-unsubscribe@sccn.ucsd.edu" target="_blank" rel="nofollow" ymailto="mailto:eeglablist-unsubscribe@sccn.ucsd.edu">eeglablist-unsubscribe@sccn.ucsd.edu</a><br>For digest mode, send an email with the subject "set digest mime" to <a href="mailto:eeglablist-request@sccn.ucsd.edu" target="_blank" rel="nofollow" ymailto="mailto:eeglablist-request@sccn.ucsd.edu">eeglablist-request@sccn.ucsd.edu</a></div></blockquote></div><div class="yiv7096393949MsoNormal"><br><br clear="all"></div></div></div></div></div>_______________________________________________<br>Eeglablist page: <a href="http://sccn.ucsd.edu/eeglab/eeglabmail.html" target="_blank">http://sccn.ucsd.edu/eeglab/eeglabmail.html</a><br>To unsubscribe, send an empty email to <a href="mailto:eeglablist-unsubscribe@sccn.ucsd.edu" ymailto="mailto:eeglablist-unsubscribe@sccn.ucsd.edu">eeglablist-unsubscribe@sccn.ucsd.edu</a><br>For digest mode, send an email with the subject "set digest mime" to <a href="mailto:eeglablist-request@sccn.ucsd.edu" ymailto="mailto:eeglablist-request@sccn.ucsd.edu">eeglablist-request@sccn.ucsd.edu</a><br><br></div> </div> </div> </div></div></body></html>