From: Jeff Comer (jeffcomer_at_gmail.com)
Date: Thu Nov 10 2016 - 17:23:04 CST
On Thursday, November 10, 2016, Jim Phillips <jim_at_ks.uiuc.edu> wrote:
> Hi Jeff,
> You can recompile NAMD with 3.0, but nothing earlier. That the Linux
> binaries are compiled for only 3.5 was an oversight as the Windows and Mac
> binaries do support 3.0. I've added this to CVS so a nightly build binary
> will be available tomorrow that should work on your GTX 770.
> FYI, you get a more informative error message for pre-3.0 GPUs.
> Thanks for bringing this up.
> On Thu, 10 Nov 2016, Giacomo Fiorin wrote:
> Hi Jeff, the error message seems quite clear. The new .arch file for
>> x86_64 only includes flags for CUDA capability 3.5 and later, you can
>> definitely recompile NAMD with 3.0 or earlier.
>> I tested this with two 680s on one node, and it's pretty awesome to be
>> to use both GPUs and all CPU cores as well with good scaling.
>> Thank Antti-Pekka Hynninen at ORNL for the great work.
>> On Thu, Nov 10, 2016 at 10:09 AM, Jeff Comer <jeffcomer_at_gmail.com> wrote:
>> NAMD2.12b1 runs on my GeForce GTX 960 GPUs but not on my GeForce GTX
>>> 770 GPUs. I tried adding "useCuda2 no" and "usePmeCuda no", but I
>>> continue to get this error:
>>> Charm++ fatal error:
>>> FATAL ERROR: CUDA error Error executing CUDA kernel
>>> read_CUDA_ARCH_kernel in file src/DeviceCUDAkernel.cu
>>> Error string: invalid device function
>>> Possible cause: Device compute capability is less than the compute
>>> capability the code was compiled for.
>>> on Pe 4 (conejo device 0)
>>> Is there a solution to this?
>>> Jeffrey Comer, PhD
>>> Assistant Professor
>>> Institute of Computational Comparative Medicine
>>> Nanotechnology Innovation Center of Kansas State
>>> Kansas State University
>>> Office: P-213 Mosier Hall
>>> Phone: 785-532-6311
>>> Website: http://jeffcomer.us
>> Giacomo Fiorin
>> Associate Professor of Research
>> Institute for Computational Molecular Science (ICMS)
>> College of Science and Technology, Temple University
>> 1925 North 12th Street (035-07), Room 704D
>> Philadelphia, PA 19122-1801
>> Phone: +1-215-204-4213
>> Scholar: http://goo.gl/Q3TBQU
>> Personal: http://giacomofiorin.github.io/
>> Lab page: https://icms.cst.temple.edu/members.html
>> *"As computer programmers we have a responsibility to make sure that we
>> the computers instead of the computers running us."* - Steve Oualline
-- –––––––––––––––––––––––––––––––––––——————— Jeffrey Comer, PhD Assistant Professor Institute of Computational Comparative Medicine Nanotechnology Innovation Center of Kansas State Kansas State University Office: P-213 Mosier Hall Phone: 785-532-6311 Website: http://jeffcomer.us
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