Hi Luca,
Short answer: No worries for now.
Long answer: The warnings come from fact that all __shfl* functions
were re-written recently. The old existing __shfl* functions will be
deprecated in the next CUDA release. We already have addressed this "issue"
in the developing version and AMBER20 will exclusively utilize the new
__shfl* functions.
Best,
Taisung
-----Original Message-----
From: Luca Codutti <luca.codutti.oci.uni-hannover.de>
Sent: Monday, June 24, 2019 12:20 PM
To: amber.ambermd.org
Subject: [AMBER] cuda 10.1 compile warnings
Dear all,
I am compiling amber 18 against the cuda 10.1 library. So far I get
thousands of the following warnings (Nvidia tesla architecture):
> nstruction 'shfl' without '.sync' may produce unpredictable results on
> sm_70 and later architectures
> 8_kCalculatePMENonbondEnergy.compute_52.ptx, line 354070; warning :
> Instruction 'shfl' without '.sync' is deprecated since PTX ISA version
> 6.0 and will be discontinued in a future PTX ISA version
how worrisome are those messages?
Kind regards
Luca
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Received on Mon Jun 24 2019 - 10:30:02 PDT
