[gmx-users] gmx kill computer?

Michael Brunsteiner mbx0009 at yahoo.com
Wed Oct 24 11:06:24 CEST 2018


Thanks for you replies, Harry and Mirco!I've got 700W Thermaltake PSUs here ... according to several web-sites thatcalculate the expected power consumption for a given set of components, and alsoin our experience this should be more than enough ...Can it be that, as Mirco suggested, the 1060 in combination with gmx can give particularlylarge spikes or changes in energy consumption so that even a 700W PSU cannot cope?

>On 23.10.2018 15:12, Michael Brunsteiner wrote:
>> the computers are NOT overclocked, cooling works, cpu temperatures are well below max.
>> as stated above something like this happened three times, each time with gmx at full blastand
>> with the same type of nvidia card ... can it be that my hardware has some issue that isso well
>> hidden that only gromacs running at full blast can trigger it? - has anybody observedsuch
>> behaviour before, or suggestions on how to better diagnose the issue ... ??
>> the specs:
>> workstation 1Intel(R) Core(TM) i7-4930K CPU @ 3.40GHz + nvidia geforce gtx 1060
>> running debian stretch with nvidia driver version 387.26
>> workstation 2AMD Ryzen 7 2700X Eight-Core Processor + nvidia geforce gtx 1060
>> running debian stretch with nvidia driver version 390.87
>GTX-1060, due to the interval-like offloading of gpu-related work will
>possibly generate some really nasty load-changes the power supply can't
>cope with. It is well known that fast load changes of modern graphics
>cards may overstrain the power supply unit if not "strong" enough.
>The symptoms very much suggest a problem with the PSU.

=============================== Why be happy when you could be normal?

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