From: Lucas (lucasbleicher_at_gmail.com)
Date: Wed Aug 14 2013 - 17:09:56 CDT
ldd returns:
linux-vdso.so.1 => (0x00007fffe39ff000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x0000003049200000)
libdl.so.2 => /lib64/libdl.so.2 (0x0000003048e00000)
libcudart.so.4 => not found
libm.so.6 => /lib64/libm.so.6 (0x0000003049600000)
libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x0000003055a00000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x0000003054a00000)
libc.so.6 => /lib64/libc.so.6 (0x0000003048a00000)
/lib64/ld-linux-x86-64.so.2 (0x0000003048600000)
nvidia-smi –q –g 0 actually returns an error (Invalid combination of
input arguments), but I've included the full output from a
"nvidia-smi -q" in the end of the e-mail.
I was fiddling with the command line options this morning and found
out that the program actually runs if I include the +devices directive
(I thought that namd would simply assume it would be "+devices all" if
that option was not used). What is weird about it is that the
benchmark times for four processors and the GPU are actually much
slower than simply using the four processors (even if I use a very
high value for outputEnergies, such as 500). I know the Quadro 600
isn't one of the most powerful cards around, but it still weird to see
such performance (about 3days/ns with CPUs only, 3.6 days/ns when
using +devices 0).
==========================================
Output from nvidia-smi -q:
Timestamp : Wed Aug 14 11:20:21 2013
Driver Version : 319.37
Attached GPUs : 1
GPU 0000:01:00.0
Product Name : Quadro 600
Display Mode : Enabled
Display Active : Enabled
Persistence Mode : Disabled
Accounting Mode : N/A
Accounting Mode Buffer Size : N/A
Driver Model
Current : N/A
Pending : N/A
Serial Number : N/A
GPU UUID : GPU-0fb91d62-ad2d-2b61-a988-91870abafeb1
VBIOS Version : 70.08.88.00.01
Inforom Version
Image Version : N/A
OEM Object : N/A
ECC Object : N/A
Power Management Object : N/A
GPU Operation Mode
Current : N/A
Pending : N/A
PCI
Bus : 0x01
Device : 0x00
Domain : 0x0000
Device Id : 0x0DF810DE
Bus Id : 0000:01:00.0
Sub System Id : 0x083510DE
GPU Link Info
PCIe Generation
Max : 2
Current : 1
Link Width
Max : 16x
Current : 16x
Fan Speed : 30 %
Performance State : P12
Clocks Throttle Reasons : N/A
Memory Usage
Total : 1023 MB
Used : 68 MB
Free : 955 MB
Compute Mode : Default
Utilization
Gpu : 0 %
Memory : 12 %
Ecc Mode
Current : N/A
Pending : N/A
ECC Errors
Volatile
Single Bit
Device Memory : N/A
Register File : N/A
L1 Cache : N/A
L2 Cache : N/A
Texture Memory : N/A
Total : N/A
Double Bit
Device Memory : N/A
Register File : N/A
L1 Cache : N/A
L2 Cache : N/A
Texture Memory : N/A
Total : N/A
Aggregate
Single Bit
Device Memory : N/A
Register File : N/A
L1 Cache : N/A
L2 Cache : N/A
Texture Memory : N/A
Total : N/A
Double Bit
Device Memory : N/A
Register File : N/A
L1 Cache : N/A
L2 Cache : N/A
Texture Memory : N/A
Total : N/A
Retired Pages
Single Bit ECC : N/A
Double Bit ECC : N/A
Pending : N/A
Temperature
Gpu : 49 C
Power Readings
Power Management : N/A
Power Draw : N/A
Power Limit : N/A
Default Power Limit : N/A
Enforced Power Limit : N/A
Min Power Limit : N/A
Max Power Limit : N/A
Clocks
Graphics : 50 MHz
SM : 101 MHz
Memory : 135 MHz
Applications Clocks
Graphics : N/A
Memory : N/A
Default Applications Clocks
Graphics : N/A
Memory : N/A
Max Clocks
Graphics : 641 MHz
SM : 1282 MHz
Memory : 800 MHz
Compute Processes : None
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