AMD Radeon VII

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scole of TSBT
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#1 AMD Radeon VII

Post by scole of TSBT »

The new 7 nm GPU became available here in the US last week. The Radeon VII (Vega 20) had specs too good to pass up. 11136/13824 (base/boost) SP GFLOPS and 2784/3458 DP GLFOPS, 300W TBP. So I bought a couple with plans to sell one. Anyone interest in the other? PM me if interested. I'll ship to the UK as long as you pay the shipping, VAT, etc.
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davidbam
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#2 Re: AMD Radeon VII

Post by davidbam »

Yikes 300W !

Love to hear how you get on with it. Will you be crunching Milky Way with all that DP power?

How much does one cost State-side?
I think this is fool-proof but could you just try it for me please? • There are 10 types of people in the world; those who understand binary, and those who don’t
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#3 Re: AMD Radeon VII

Post by scole of TSBT »

davidBAM wrote: Tue Feb 12, 2019 5:44 am Yikes 300W !

Love to hear how you get on with it. Will you be crunching Milky Way with all that DP power?

How much does one cost State-side?
The crunching power of 3x R9 280X/HD7970 but using 1/3 the juice and creating 1/3 the heat.

Here'a system that ran a set of Milkyway WUs. ~20 sec per WU...https://milkyway.cs.rpi.edu/milkyway/re ... tid=797216

$699+tax but most retailers are out of stock already. I found a couple at a Micro Center in Duluth, Georgia and my brother picked them up and is mailing them to me.
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#4 Re: AMD Radeon VII

Post by davidbam »

Wowser - first one I checked was validated on an nVidia 1070ti taking 7 times longer https://milkyway.cs.rpi.edu/milkyway/wo ... 1716893243
I think this is fool-proof but could you just try it for me please? • There are 10 types of people in the world; those who understand binary, and those who don’t
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#5 Re: AMD Radeon VII

Post by scole of TSBT »

Milkyway testing in 4c/8t i7-3770 system
Avg SecTheoreticalTheoretical
# WUsper WUWU per HourHourly Cr
892313.0471,061
668317.6572,106
446313.0471,061
335308.5770,046
228257.1458,371
122163.6437,145
In reality, it did 309 WUs and logged 65k cr in an hour. It might do a little more once pendings start going valid.
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#6 Re: AMD Radeon VII

Post by davidbam »

Looking good

have you tried it on Collatz yet?
I think this is fool-proof but could you just try it for me please? • There are 10 types of people in the world; those who understand binary, and those who don’t
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#7 Re: AMD Radeon VII

Post by scole of TSBT »

Collatz testing in 4c/8t i7-3770 system
Run TimeCPU TimeCredit
301.724.9730,903.39
311.194.7332,869.79
311.574.5931,015.35
277.6911.8830,968.73
333.2118.3032,658.67
Using this config and app_config.xml...
verbose=1
kernels_per_reduction=48
threads=8
lut_size=17
sleep=1
reduce_cpu=0
sieve_size=28

<app_config>
<project_max_concurrent>1</project_max_concurrent>
<app>
<name>collatz_sieve</name>
<gpu_versions>
<gpu_usage>1</gpu_usage>
<cpu_usage>1</cpu_usage>
</gpu_versions>
</app>
</app_config>

If there's a tighter config I'll try it.
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#8 Re: AMD Radeon VII

Post by scole of TSBT »

Increased sieve_size from 28 to 30. The avg credit/run-sec went from 96.88 to 114.76 which is an 18% improvement.

Collatz testing in 4c/8t i7-3770 system
Run TimeCPU TimeCredit
245.703.0328,188.33
246.633.2227,677.64
244.745.1928,116.11
245.704.8128,804.47
Using this config and app_config.xml...
verbose=1
kernels_per_reduction=48
threads=8
lut_size=17
sleep=1
reduce_cpu=0
sieve_size=30

<app_config>
<project_max_concurrent>1</project_max_concurrent>
<app>
<name>collatz_sieve</name>
<gpu_versions>
<gpu_usage>1</gpu_usage>
<cpu_usage>1</cpu_usage>
</gpu_versions>
</app>
</app_config>
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#9 Re: AMD Radeon VII

Post by davidbam »

Many thanks for the info. As you said yourself, I think, the really significant improvement is on projects which use double precision math
I think this is fool-proof but could you just try it for me please? • There are 10 types of people in the world; those who understand binary, and those who don’t
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#10 Re: AMD Radeon VII

Post by scole of TSBT »

Einstein testing in 4c/8t i7-3770 system
Avg SecTheoreticalTheoretical
# WUsper WUWU per HourHourly Cr
127213.2445,860
242117.1059,259
352120.7371,827
I get too many computation errors running 3 WUs at a time. I don't think it was running at 100% though. Maybe somebody has an idea to resolve it.

Amicable Numbers testing in 4c/8t i7-3770 system
Forget it. Something has changed. 4 WUs on a GTX 1080 only having it peaking at 30% utilization. Not enough GPU memory to run more. Difficult to tell what the Radeon VII is doing. MSI Afterburner nor GPU-Z see anything and AMD's new software stinks.
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