If this gives access to the SRAT table or things like that, it may give us a lot of locality info (IIRC, that's what Linux reads to get NUMA and I/O locality information). But I hope I won't be the one writing the ACPI table parser :)
Brice On 04/05/2010 00:09, Jeff Squyres wrote: > Is this helpful? > > http://msdn.microsoft.com/en-us/library/ms724379(VS.85).aspx > > You can use that to enumerate the ACPI firmware tables directly. Supposedly, > you should be able to discover topology information. Not very user friendly, > unfortunately. > > > On May 3, 2010, at 4:52 PM, Jeff Squyres (jsquyres) wrote: > > >> He says: >> >> GlobalMemoryStatusEx >> http://msdn.microsoft.com/en-us/library/aa366589(v=VS.85).aspx >> >> But that doesn't give numa node information. :-\ >> >> He's looking to see if he can find another function that gives numa info, >> but it may take a little time (the windows memory subsystem guy is not >> available today to ask). >> >> I guess there's 2 options: >> >> 1. Take the total amount of memory and divide by the number of numa nodes. >> This is *probably* accurate on most machines today, but there's probably >> some machines where it isn't (and/or won't be in the future). >> >> 2. Indicate visually that it's the amount of memory available -- not the >> total memory. (do we document this somewhere, btw? I admit to not having >> reading the windows docs...?) >> >> >> >> On May 3, 2010, at 4:22 PM, Jeff Squyres (jsquyres) wrote: >> >> >>> (I'm asking my local Microsoft contact....) >>> >>> On May 3, 2010, at 4:15 PM, Samuel Thibault wrote: >>> >>> >>>> Jeff Squyres, le Mon 03 May 2010 15:57:37 -0500, a écrit : >>>> >>>>> Running lstopo on w7 (64 bit): >>>>> >>>>> ----- >>>>> C:\Temp\hwloc>lstopo >>>>> Note: GetLogicalProcessorInformationEx was never tested yet! >>>>> ----- >>>>> >>>> Ooops, it seems I have forgotten to remove it. Now done. >>>> >>>> >>>>> Plus, the memory it reported was the currently free memory, not total >>>>> memory. >>>>> >>>> Yes. I haven't found a win32 function that provides the total memory. >>>> >>>> Samuel >>>> _______________________________________________ >>>> hwloc-devel mailing list >>>> hwloc-de...@open-mpi.org >>>> http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-devel >>>> >>>> >>> >>> -- >>> Jeff Squyres >>> jsquy...@cisco.com >>> For corporate legal information go to: >>> http://www.cisco.com/web/about/doing_business/legal/cri/ >>> >>> >>> _______________________________________________ >>> hwloc-devel mailing list >>> hwloc-de...@open-mpi.org >>> http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-devel >>> >>> >> >> -- >> Jeff Squyres >> jsquy...@cisco.com >> For corporate legal information go to: >> http://www.cisco.com/web/about/doing_business/legal/cri/ >> >> >> _______________________________________________ >> hwloc-devel mailing list >> hwloc-de...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-devel >> >> > >
