I have to correct my previous report. When running molecular dynamics, the
capability of the GPU is 5GT/, but the actual speed link is at 2.5GT/s,
i.e., below PCIe 2.o
#lspci -vvvv
02:00.0 VGA compatible controller: NVIDIA Corporation GK104 [GeForce GTX
680] (rev a1) (prog-if 00 [VGA controller])
Subsystem: NVIDIA Corporation Device 0969
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 0: Memory at fa000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at c0000000 (64-bit, prefetchable) [size=128M]
Region 3: Memory at c8000000 (64-bit, prefetchable) [size=32M]
Region 5: I/O ports at e000 [size=128]
[virtual] Expansion ROM at fb000000 [disabled] [size=512K]
Capabilities: [60] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [78] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s
unlimited, L1 <64us
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+
MaxPayload 256 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr-
TransPend-
LnkCap: Port #0, Speed 5GT/s, Width x16, ASPM L0s L1, Latency L0
<512ns, L1 <4us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x16, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range AB, TimeoutDis+, LTR-, OBFF Not
Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF
Disabled
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete+,
EqualizationPhase1+
EqualizationPhase2+, EqualizationPhase3+,
LinkEqualizationRequest-
francesco pietra
---------- Forwarded message ----------
From: Francesco Pietra <[email protected]>
Date: Tue, Nov 12, 2013 at 3:54 PM
Subject: upgrade to jessie from wheezy with cuda problems
To: amd64 Debian <[email protected]>
Hello:
I decided to try jessie to get PCIe 3.0 with a recent nvidia driver, thus
upgrading from wheezy.
wheezy was
uname -r
3.2.0-4-amd64
nvidia-smi
304.88
nvcc --version
4.2
(the latter is also the version at which the molecular dynamics code was
compiled, and used without calling the X-server)
********************
Following aptitude update
aptitude-upgrade
a number of dependecies related to gnome were not met (evolution-common
lbfolks25 gnome-panel gnome-shell gnome-theme-extras gnome-theme-standard
libreoffice-evolution). This notwithstanding, I decided to upgrade.
After rebooting to get linux matching with nvidia:
nvcc --version
5.0
uname -r
3.10-3-amd64
nvidia-smi
the nvidia kernel module has version 304.108 but the nvidia driver
component has version 319.60.
Driver 319.6 is just what I wanted. Now, how best fix the problems? Install
linux image 3.2?
In the past I tried dist-upgrade, getting into devastating problems.
thanks
francesco pietra
PS I was advised that debian is getting bounces from my address above. If
so, please try my institutional address <
[email protected]>
