<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div style="" class=""><span style="" class="">Most extensive VAX MP stress tests I did were on 8-VCPU configuration (i7), however I also did some testing on 24-VCPU and 32-VCPU configurations. No problems have been spotted.<br style=""><br style="" class="">If you want to run VAX MP on a 32-bit host system, you might wish to rebuild VAX MP from source, as 32-bit binaries posted on the web site do not incorporate some later fixes (I currently do not have 32-bit Linux build environment around, so I updated only 64-bit binaries).<br style="" class=""><br style="" class="">However be sure to read the note on OpenVMS VAX SMP licensing at the beginning of "VAX MP User Guide".<br style="" class=""></span></div><div style="" class=""><br style="" class=""></div> <div class="" style="font-family: times new roman, new york, times, serif;
font-size: 16px;"> <div class="" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style="" class="" dir="ltr"> <hr style="" class="" size="1"> <font style="" class="" size="2" face="Arial"> <b style="" class=""><span class="" style="font-weight:bold;">From:</span></b> Mark Wickens <mark@wickensonline.co.uk><br style="" class=""> <b style="" class=""><span class="" style="font-weight: bold;">To:</span></b> "simh@trailing-edge.com" <Simh@trailing-edge.com> <br style="" class=""> <b style="" class=""><span class="" style="font-weight: bold;">Sent:</span></b> Monday, January 5, 2015 3:01 PM<br style="" class=""> <b style="" class=""><span class="" style="font-weight: bold;">Subject:</span></b> [Simh] Platform for VAX MP Experimentation (amongst other uses)<br style="" class=""> </font> </div> <div style="" class=""><br style="" class=""><div style="" class=""
id="yiv1745598570"><div style="" class="" dir="ltr">Hi<div style="" class=""><br style="" class=""></div><div style="" class="">I was interested in the collective thoughts of SIMH users with regard to simulator performance - and in particular - about what would be a suitable platform to experiment with the multiprocessor variant of SIMH.</div><div style="" class=""><br style="" class=""></div><div style="" class="">I have various reasons to be interested in a server that has multiple cores - from virtualisation of Windows and other operating systems to running multiple emulators including VAX and Alpha emulators.</div><div style="" class=""><br style="" class=""></div><div style="" class="">I am seriously considering buying an HP Proliant 585 Gen 6 server - the variant I'm looking it has 32 GB of RAM and 4 x hex core AMD Opteron 2.4Ghz (8431) for a total of 24 cores. There isn't a great deal of performance information out there but I think buying one of
these second hand for around GBP 250 is a sensible compromise between number of CPUs and price.</div><div style="" class=""><br style="" class=""></div><div style="" class="">Are there any other multi-cpu servers I could sensibly consider given budget constraints? Is 32 GB a sensible amount of RAM or should I got for more?</div><div style="" class=""><br style="" class=""></div><div style="" class="">Thanks for the help.</div><div style="" class=""><br style="" class=""></div><div style="" class="">Mark.</div></div></div><br style="" class="">_______________________________________________<br style="" class="">Simh mailing list<br style="" class=""><a style="" class="" ymailto="mailto:Simh@trailing-edge.com" href="mailto:Simh@trailing-edge.com">Simh@trailing-edge.com</a><br style="" class=""><a style="" class="" href="http://mailman.trailing-edge.com/mailman/listinfo/simh" target="_blank">http://mailman.trailing-edge.com/mailman/listinfo/simh</a><br
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