c410x, GPU/M2075 and C6145

Patrick McMahon pmcmahon at mail.chem.udel.edu
Tue Mar 27 10:54:18 CDT 2012


Martin,

I have one of those same setups.

I found I needed to power up the C410 and let it initialize well before I power up the C6145 (3 or 5 min...)

After that I also found the problem was usually due to the thick cables and connectors not seating properly, either in the c410 or in the c6145.

Do you have four cables from the c410 to the c6145? 

Slot #1 and Slot #3 on the C410x to the two connectors on the top node in the C6145
Slot #2 and Slot #4 on the C410x to the two connectors on the bottom node in the C6145

That should allow for 4 GPU's per C6145 node with the default C410x mapping.

Pat




----- Original Message -----
From: "Martin Flemming" <martin.flemming at desy.de>
To: "Dell poweredge Mailling-liste" <linux-poweredge at dell.com>
Sent: Tuesday, March 27, 2012 1:39:49 AM (GMT-0500) America/New_York
Subject: c410x, GPU/M2075 and C6145


Hi !

I've got a problem to get the
NVIDIA M2075 PCIe x16 GPGPU Card in PowerEdge C410x
to work with (at this time for two) C6145 :-(

... lspci shows nothing about them :-(

After disable all special PCIE-BIOS-settings,
one machine shows the controller :-)

42:00.0 PCI bridge: PLX Technology, Inc. PEX 8647 48-Lane, 3-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev bb)
43:04.0 PCI bridge: PLX Technology, Inc. PEX 8647 48-Lane, 3-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev bb)
43:08.0 PCI bridge: PLX Technology, Inc. PEX 8647 48-Lane, 3-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev bb)
45:00.0 PCI bridge: PLX Technology, Inc. PEX 8647 48-Lane, 3-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ff)
46:04.0 PCI bridge: PLX Technology, Inc. PEX 8647 48-Lane, 3-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ff)
46:08.0 PCI bridge: PLX Technology, Inc. PEX 8647 48-Lane, 3-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ff)
47:00.0 PCI bridge: PLX Technology, Inc. PEX 8696 96-lane, 24-Port PCI Express Gen 2 (5.0 GT/s) Multi-Root Switch (rev ff)
48:04.0 PCI bridge: PLX Technology, Inc. PEX 8696 96-lane, 24-Port PCI Express Gen 2 (5.0 GT/s) Multi-Root Switch (rev ff)
48:08.0 PCI bridge: PLX Technology, Inc. PEX 8696 96-lane, 24-Port PCI Express Gen 2 (5.0 GT/s) Multi-Root Switch (rev ff)
49:00.0 3D controller: NVIDIA Corporation Tesla M2075 Dual-Slot Computing Processor Module (rev ff)
4a:00.0 3D controller: NVIDIA Corporation Tesla M2075 Dual-Slot Computing Processor Module (rev ff)

The other machine shows nothing :-(

Both machines are connected via the the default port-mapping
IPASS mapping to PCIE Controller

Mapping 1

1 -> 1,15
VS
5 -> 2,16


But i can't build the nvivdia-drvier on the machine with the detected 
TESLA M2075

WARNING: You do not appear to have an NVIDIA GPU supported by the 295.20 
NVIDIA Linux graphics driver installed in this system.  For further 
details, please see the appendix SUPPORTED NVIDIA GRAPHICS CHIPS in the 
README available on the Linux driver download page at www.nvidia.com.

I'm running Scientificlinux 6.2 (Redhat Clone)

Any hint is welcome !

thanks & cheers,

        Martin

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-- 
Happiness lies in being privileged to work hard for long hours in doing whatever you think is worth doing. - Robert Heinlein
---
Patrick McMahon,  CITA IV
University of Delaware 
Department of Chemistry & Biochemistry
Phone: (302)831-4289   Mobile: (302)690-1049



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