Maybe not completely related to your issue, but the windows code misses the correct enumeration to see where the GPU is in a NUMA system. The code needs to look at:

 

Use “DEVPKEY_Numa_Proximity_Domain” and “DEVPKEY_Device_Numa_Node” when calling SetupDiGetDeviceProperty.

Links:

 

http://msdn.microsoft.com/en-us/library/windows/hardware/ff543536(v=vs.85).aspx

   “Windows Server 2003, Windows XP, and Windows 2000 do not support this property.” – So should be fine on win7 and win8?

http://blogs.technet.com/b/winserverperformance/archive/2008/09/13/getting-system-topology-information-on-windows.aspx

 

But this only works if the bios has the right ACPI entries, we filed a bug and got a update for the z820 from HP. This relies on the _PXM  value in the ACPI tables.

 

You can use windbg and !nstree to view the tables. There inside should be some _PXM values.

 

Ash

 

 

From: hwloc-users [mailto:hwloc-users-bounces@open-mpi.org] On Behalf Of Solibakke Per Bjarte
Sent: Monday, November 18, 2013 10:15 AM
To: hwloc-users@open-mpi.org
Subject: [hwloc-users] DELL 8 core machine + Quadro K5000 GPU Card...

 

Hello

 

I recently got access to a very interesting and powerful machine: Dell 8 core + GPU Quadro K5000 (96 cores).

A total of 1536 cores in the original machine configuration.

 

I installed first HWLOC 1.7 version and I also installed the newly released beta 1.8. The final installation lines report PCI (linux) CUDA.

However, the commands:

 

Lstopo —whole-system and lstopo —whole-io

 

report only the 8 CPU-cores. No reference to PCI-Bridges, eth0, seas +++ and the GPUs.

 

Is the installation of the machine the problem or is my 

./configure —prefix=/usr/local/hwloc

 

missing some vital elements?

 

Regards

PBSolibakke

 

Dr.econ Per Bjarte Solibakke

Professor

per.b.solibakke@himolde.no

Cell phone: 004790035606

Phone: 004771214238


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