Hi Ross,
thanks for info !
1) So in your opinion two "RTX2080 Ti" in 2U or 4U server should be OK
with regarding
to cooling, am I right ? Probably also in this case (just 2
GPUs/server) will be necessary (suitable) at least one empty PCI-E slot
between the GPUs, am I right ?
2) Could be possible to add "RTX2080" and "RTX280 Ti" GPUs in the list of
supported
Amber18 GPUs - e.g. here
http://ambermd.org/GPUHardware.php - soon ?
We are using this www page in our HW specification, when buying some
new CPU/GPU nodes.
Thanks,
Best wishes,
Marek
Dne Fri, 05 Oct 2018 15:39:30 +0200 Ross Walker <ross.rosswalker.co.uk>
napsal/-a:
> Hi Marek,
>
> My expectation for 2080TI is ~25 to 30% over 1080TI. I should have some
> firm numbers in about 2 to 3 weeks. Note the cooling design is the same
> so the founders/reference design cards will have the same issues with
> multiple cards in a box as the RTX2080 and will need custom cooling
> solutions.
>
> In terms of performance per dollar things do not look good due to
> NVIDIA's price inflation. You are looking at a 70+% increase in price
> for a ~30% increase in performance, an increase one historically has
> always got for free with each new generation of hardware so I would not
> exactly call the RTX2080TI a technological improvement over the 1080TI.
> In real terms it is a step backwards by around 4 years.
>
> All the best
> Ross
>
>> On Oct 5, 2018, at 09:17, Marek Maly <marek.maly.ujep.cz> wrote:
>>
>> Hi Ross,
>>
>> thanks a lot for this first RTX2080/Amber18 tests and important
>> technical comments.
>>
>> I think that your "1080Ti vs 2080/Amber18" results are rather in good
>> agreement
>> with comparison of these two GPUs on
>>
>> https://www.videocardbenchmark.net/high_end_gpus.html
>>
>> But what I really look forward to (also because we are planning some
>> HW updates ...) are Amber18 benchmarks with "RTX 2080 Ti", where seems
>> to be higher difference comparing to 1080 Ti and also lets hope that
>> in this actual "GTX Top model" will be also cooling a bit more
>> satisfying...
>>
>> When do you think could be "2080 Ti/Amber18" provisional benchmarks
>> available ?
>>
>> Best wishes,
>>
>> Marek
>>
>>
>>
>>
>>
>> Dne Fri, 05 Oct 2018 14:32:07 +0200 Ross Walker <ross.rosswalker.co.uk>
>> napsal/-a:
>>
>>> TLDNR: NVIDIA RTX2080 works with AMBER 18, gives the correct answers
>>> in provisional tests and gets performance equivalent to a 1080TI as
>>> long as you don't put more than 2 in a box without some kind of custom
>>> cooling solution. NVIDIA price inflation is alive and kicking so perf
>>> per dollar is down ~15%.
>>>
>>>
>>> Dear Amberites
>>>
>>> I have finally managed to get my hands on some reference design
>>> RTX2080 GPUs (another month or so for 2080TI) and had a chance to test
>>> them with AMBER 18. First impressions are that the reference design
>>> cooler for the RTX series is crap.
>>>
>>>
>>>
>>> Unless there is a big space (at least 1 PCI-E unit, but ideally 2)
>>> between cards then the cards massively overheat, even when running
>>> their fans at 100% which causes them to significantly downclock. The
>>> following is an example with 4 cards running at once:
>>>
>>> Thu Oct 4 21:08:08 2018
>>> +-----------------------------------------------------------------------------+
>>> | NVIDIA-SMI 410.57 Driver Version:
>>> 410.57 |
>>> |-------------------------------+----------------------+----------------------+
>>> | GPU Name Persistence-M| Bus-Id Disp.A | Volatile
>>> Uncorr. ECC |
>>> | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util
>>> Compute M. |
>>> |===============================+======================+======================|
>>> | 0 GeForce RTX 2080 On | 00000000:19:00.0 Off
>>> | N/A |
>>> | 42% 76C P2 178W / 215W | 281MiB / 7952MiB | 95%
>>> Default |
>>> +-------------------------------+----------------------+----------------------+
>>> | 1 GeForce RTX 2080 On | 00000000:1A:00.0 Off
>>> | N/A |
>>> | 90% 87C P2 112W / 215W | 281MiB / 7952MiB | 96%
>>> Default |
>>> +-------------------------------+----------------------+----------------------+
>>> | 2 GeForce RTX 2080 On | 00000000:67:00.0 Off
>>> | N/A |
>>> | 93% 87C P2 100W / 215W | 281MiB / 7952MiB | 96%
>>> Default |
>>> +-------------------------------+----------------------+----------------------+
>>> | 3 GeForce RTX 2080 On | 00000000:68:00.0 Off
>>> | N/A |
>>> |100% 87C P2 74W / 215W | 281MiB / 7951MiB | 97%
>>> Default |
>>> +-------------------------------+----------------------+----------------------+
>>> Note the top card runs well maintaining 76C at 178W with the fan at
>>> just 42%. The remaining cards are close to 100% fan speed, thermal
>>> limited at 87C and only drawing ~100W. That means they have clocked
>>> down significantly and are still overheating. I am working with Exxact
>>> to engineer a solution and I am confident we can get these working in
>>> 4 and 8xGPU configs but for the time being if you are building your
>>> own stock machines do not put more than 2 of these in a box and make
>>> sure you space them out. PNY are going to make more traditional blower
>>> design versions of the RTX GPUs which hopefully will not have this
>>> cooling issue. I should have a chance to test some of those in a few
>>> weeks.
>>>
>>> The good news is the AMBER 18 test cases, and the validation suites I
>>> have, all pass. Performance of the RTX2080 is on par (as long as you
>>> have the cards spaced out or have an auxiliary cooling solution), with
>>> the 1080TI, which is what history, and ratio'ing the flop counts,
>>> would have us expect.
>>>
>>> Note these are provisional numbers for the 2080. Performance may
>>> improve some once optimizations for the SM7.5 hardware have been made
>>> although I wouldn't expect any miracles.
>>>
>>> JAC_PRODUCTION_NVE - 23,558 atoms PME 4fs
>>> -----------------------------------------
>>>
>>> 2080 1 x GPU: | ns/day = 761.01 seconds/ns =
>>> 113.53
>>> 1080TI 1 x GPU: | ns/day = 776.83 seconds/ns =
>>> 111.22
>>>
>>> JAC_PRODUCTION_NPT - 23,558 atoms PME 4fs
>>> -----------------------------------------
>>>
>>> 2080 1 x GPU: | ns/day = 713.93 seconds/ns =
>>> 121.02
>>> 1080TI 1 x GPU: | ns/day = 733.55 seconds/ns =
>>> 117.78
>>>
>>> JAC_PRODUCTION_NVE - 23,558 atoms PME 2fs
>>> -----------------------------------------
>>>
>>> 2080 1 x GPU: | ns/day = 399.97 seconds/ns =
>>> 216.02
>>> 1080TI 1 x GPU: | ns/day = 409.26 seconds/ns =
>>> 211.11
>>>
>>> JAC_PRODUCTION_NPT - 23,558 atoms PME 2fs
>>> -----------------------------------------
>>>
>>> 2080 1 x GPU: | ns/day = 367.69 seconds/ns =
>>> 234.98
>>> 1080TI 1 x GPU: | ns/day = 377.10 seconds/ns =
>>> 229.12
>>>
>>> FACTOR_IX_PRODUCTION_NVE - 90,906 atoms PME
>>> -------------------------------------------
>>>
>>> 2080 1 x GPU: | ns/day = 130.48 seconds/ns =
>>> 662.19
>>> 1080TI 1 x GPU: | ns/day = 121.95 seconds/ns =
>>> 708.48
>>>
>>> FACTOR_IX_PRODUCTION_NPT - 90,906 atoms PME
>>> -------------------------------------------
>>>
>>> 2080 1 x GPU: | ns/day = 123.86 seconds/ns =
>>> 697.55
>>> 1080TI 1 x GPU: | ns/day = 113.46 seconds/ns =
>>> 761.48
>>>
>>> CELLULOSE_PRODUCTION_NVE - 408,609 atoms PME
>>> --------------------------------------------
>>>
>>> 2080 1 x GPU: | ns/day = 26.73 seconds/ns =
>>> 3232.72
>>> 1080TI 1 x GPU: | ns/day = 26.14 seconds/ns =
>>> 3305.84
>>>
>>> CELLULOSE_PRODUCTION_NPT - 408,609 atoms PME
>>> --------------------------------------------
>>>
>>> 2080 1 x GPU: | ns/day = 25.30 seconds/ns =
>>> 3414.99
>>> 1080TI 1 x GPU: | ns/day = 24.72 seconds/ns =
>>> 3495.08
>>>
>>> STMV_PRODUCTION_NPT - 1,067,095 atoms PME
>>> -----------------------------------------
>>>
>>> 2080 1 x GPU: | ns/day = 16.17 seconds/ns =
>>> 5344.36
>>> 1080TI 1 x GPU: | ns/day = 15.09 seconds/ns =
>>> 5727.20
>>>
>>> TRPCAGE_PRODUCTION - 304 atoms GB
>>> ---------------------------------
>>>
>>> 2080 1 x GPU: | ns/day = 1191.46 seconds/ns =
>>> 72.52
>>> 1080TI 1 x GPU: | ns/day = 1301.05 seconds/ns =
>>> 66.41
>>>
>>> MYOGLOBIN_PRODUCTION - 2,492 atoms GB
>>> -------------------------------------
>>>
>>> 2080 1 x GPU: | ns/day = 490.54 seconds/ns =
>>> 176.13
>>> 1080TI 1 x GPU: | ns/day = 448.95 seconds/ns =
>>> 192.45
>>>
>>> NUCLEOSOME_PRODUCTION - 25,095 atoms GB
>>> ---------------------------------------
>>>
>>> 2080 1 x GPU: | ns/day = 10.89 seconds/ns =
>>> 7935.83
>>> 1080TI 1 x GPU: | ns/day = 10.14 seconds/ns =
>>> 8520.32
>>>
>>> Note if you compare against 4 GPUs with no additional cooling the
>>> clocking down of the 2080s is obvious.
>>>
>>> JAC_PRODUCTION_NVE - 23,558 atoms PME 4fs - Runnin 4 independent
>>> calculations at once.
>>>
>>> 2080
>>> [0] 1 x GPU: | ns/day = 761.27 seconds/ns =
>>> 113.49
>>> [1] 1 x GPU: | ns/day = 676.54 seconds/ns =
>>> 127.71
>>> [2] 1 x GPU: | ns/day = 649.64 seconds/ns =
>>> 133.00
>>> [3] 1 x GPU: | ns/day = 441.83 seconds/ns =
>>> 195.55
>>>
>>> 1080TI
>>> [0] 1 x GPU: | ns/day = 776.57 seconds/ns =
>>> 111.26
>>> [1] 1 x GPU: | ns/day = 779.75 seconds/ns =
>>> 110.81
>>> [2] 1 x GPU: | ns/day = 773.42 seconds/ns =
>>> 111.71
>>> [3] 1 x GPU: | ns/day = 747.29 seconds/ns =
>>> 115.62
>>>
>>> So in summary:
>>>
>>> 2080 works with AMBER 18, gives the correct answers in provisional
>>> tests and gets performance equivalent to a 1080TI as long as you don't
>>> put more than 2 in a box without some kind of custom cooling solution.
>>>
>>> Of course this is 'modern' NVIDIA so price inflation is the name of
>>> the game so while the performance matches the performance per dollar
>>> is significantly worse. 1080TI Founders MSRP was $699, 2080 Founders
>>> MSRP is $799 so performance per $ has decreased approximately 15%.
>>>
>>> All the best
>>> Ross
>>>
>>>
>>>
>>>
>>> _______________________________________________
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>>> AMBER.ambermd.org
>>> http://lists.ambermd.org/mailman/listinfo/amber
>>
>>
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Received on Mon Oct 08 2018 - 03:30:02 PDT
