I ran into a nasty problem when trying to massage data sets that are larger than a few gigabytes). You /will/ need 64-bit hardware and a 64-bit OS. I've used both AMD-64 CPUs, which I prefer for personal reasons, as well as the newer line of Intel AMD-64 clones - all work well. I've also used Linux-64, WinXP-64, Win2003Server-64 (which I consider the most stable of the Windows versions), and Vista-64. Basically, you'll need to create something like a 20GB of swap file. A non-64-bit Windows platform will not let you declare larger than a 4 GB swap file. Also, whatever software you use to visualize the fields (I prefer RSI's IDL) won't load multi-gigabyte datasets into memory unless running on a 64-bit OS and hardware.
Patti adrian wrote: > Hi, everyone: > We are considering for buying one PC to run MEEP . > The number of points in my usual case is around 125e+6, > corresponding to 5.722GB. > Additionally, we use dispersive material. > I use long wavelength such as 1550nm and resolution is 0.5 for > length unit being 1nm. > ( Since the minimum feature size in my case is 20nm) > I find one PC dedicated for runing FDTD has specs as following: > > Choice of 8 or 16 GB RAM dedicated for > CelerityTM Acceleration Board. > • Intel Pentium IV 3.2 GHz CPU with Hyper > Threading > • 4 GB DDR PC3200 (400 MHz) SDRAM > (motherboard RAM) > • More than one terabyte of storage > from OptoFDTD Max > > I am wondering if such a hardware is sufficient to support MEEP, for > my case or > I have to strengthen some hardware like memory or speed of CPU. > Or, It's better to use workstation with parallel process and clusters? > If so, what kind of facility do I need? > > Thank you so much. > Cheers > Adrian > > ___________________________________________________________________ > 體驗全新Yahoo!奇摩電子信箱2.0 - *馬上體驗* > <http://tw.rd.yahoo.com/referurl/mail/mail20/tag_1022/*http://tw.mg0.mail.yahoo.com/dc/landing>！ > > ------------------------------------------------------------------------ > > _______________________________________________ > meep-discuss mailing list > meep-discuss@ab-initio.mit.edu > http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
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