Posts by Keith Myers

1) Message boards : Number crunching : New computer on the way (Message 1940008)
Posted 26 minutes ago by Profile Keith Myers Special Project $250 donor
Post:
pics!!

Look at the "Whatever One" thread in the GPUUG forum. Details of my build and problems and temporary solutions.
2) Message boards : Number crunching : Panic Mode On (112) Server Problems? (Message 1939861)
Posted 1 day ago by Profile Keith Myers Special Project $250 donor
Post:
I saw that. The list of files goes on forever. Should be plenty of work available as long as the splitters do their job. No Arecibo work so the RAC's will continue to fall.
3) Message boards : Number crunching : Panic Mode On (112) Server Problems? (Message 1939593)
Posted 2 days ago by Profile Keith Myers Special Project $250 donor
Post:
Don't worry about it. Carolyn has had file issues since Christmas. I've had Carolyn issues on my Donation page since then. Others have had Carolyn issues on other files too. You are in good company.
4) Message boards : Number crunching : New computer on the way (Message 1939513)
Posted 3 days ago by Profile Keith Myers Special Project $250 donor
Post:
Let me know when you are comfortable with the system and I can provide some scripts to take the cards in P2 state and boost the clocks back to P3 state effectively. Also there is a script to set affinities and priority levels for the cpu and gpu apps.
5) Message boards : Number crunching : New computer on the way (Message 1939452)
Posted 3 days ago by Profile Keith Myers Special Project $250 donor
Post:
It is either easy or a bit of work. Best case is the monitor is newer and exports its EDID data and gets interrogated about its capabilities at boot and everything falls into place and the display manager picks up the change and adjusts accordingly and passes the configuration through to the Xorg server which rewrites the xorg.conf.

Second best is to plug the monitor in and it runs at the old monitor resolution and you use the Display app in Settings to set the new screen resolution and it adjusts things accordingly.

The most work is to use the xrandr command line utility to add a new custom size to the pick list menu in the Display app.
6) Message boards : Number crunching : Would like to contribute. Need help. (Message 1939407)
Posted 4 days ago by Profile Keith Myers Special Project $250 donor
Post:
He's going to need to tell me some of the particulars of the system components. Mainly the memory. The system has 2 sticks of 4GB for a total of 8GB. So at least he will be running dual channel.

But what are the specs of the memory sticks themselves. What brand? What speed? Ryzen performs best with the highest clocked memory as possible up to 3200Mhz. I would think with that low density, the memory sticks will be single sided which is a plus. But the tuning is very memory brand specific for optimized.

Also, I have no experience with the B350 chipset. But there are many users in the forums running motherboards with the B350 chipset that are getting good cpu and memory performance out their systems.

Will need to know the brand, make and model of the motherboard to better suggest tuning parameters in the BIOS also.
7) Message boards : Number crunching : New computer on the way (Message 1939362)
Posted 4 days ago by Profile Keith Myers Special Project $250 donor
Post:
Hi Kevin, no I don't know anyway of making GKrellm show in two columns. Even I have troubles fitting 16 cpu windows vertically. What I normally do is go into settings and choose the Builtins >> CPU >> Apply any CPU chart config height change to all CPU charts.

Then I right click a CPU chart window which pulls up its configuration drop down menu and then change the default 40 pixel height to 25 or whatever to fit all the CPU charts vertically in the desktop real estate. I don't think fitting 32 processors is going to fit at any chart height though without the charts becoming unreadable.

What you could do is use the Composite CPU chart at the top to show the aggregated cpu usage. I also turn off lots of the Builtin charts that are unused like Battery, Mail, File System, Internet, Clock etc,etc. Whatever you don't need to use to reduce the number of chart windows drawn.

I noticed about a 5% reduction in runtimes for the AMD compiled r3711 SSE41 app versus the Intel compiled one when I did the Lunatics benchmarks with both both apps. No reason not to use it if TBar did us a favor with a more optimized compiled one.

You can also change the horizontal chart height of GKrellm too if you haven't found that setting before along with the lock the window to the last position after restart. I put the window over on the right side of my screen. Balances the Launcher/Dock on the left.
8) Message boards : Number crunching : Panic Mode On (112) Server Problems? (Message 1939238)
Posted 5 days ago by Profile Keith Myers Special Project $250 donor
Post:
Yes there seems to be a few dodgy workunits out there.

Task 3008834112

We all seem to have been hit with:
</stderr_txt>
<message>
upload failure: <file_xfer_error>
<file_name>05jn18aa.18403.1473928.7.34.147_2_r1038861265_0</file_name>
<error_code>-161 (not found)</error_code>
</file_xfer_error>

errors. Task names don't match. Assume that is why the file isn't found.
9) Message boards : Number crunching : New computer on the way (Message 1939229)
Posted 5 days ago by Profile Keith Myers Special Project $250 donor
Post:
Ok. Ok. pics when the new system is assembled.
10) Message boards : Number crunching : New computer on the way (Message 1939226)
Posted 5 days ago by Profile Keith Myers Special Project $250 donor
Post:
I just ordered a new case and another radiator for the custom loop system. I decided I would put to good use the Amazon Chase cashback bucks from the Ryzen+ upgrades. I have been unhappy with the cpu temps and the loop temps with both the cpu and 1080Ti on the same loop. I figured adding another 360mm radiator to the loop will solve that issue. The new Thermaltake X5 case will fit it all and still fit on the table the system sits on.

I have been very happy with the Thermaltake X9 case for the Intel system so figured the slightly smaller X5 case would be a good fit too.
11) Message boards : Number crunching : New computer on the way (Message 1939152)
Posted 6 days ago by Profile Keith Myers Special Project $250 donor
Post:
Yes the estimated times won't be any good until 11 valid tasks have completed that weren't overflows or 100% blanked.
12) Message boards : Number crunching : New computer on the way (Message 1939148)
Posted 6 days ago by Profile Keith Myers Special Project $250 donor
Post:
OK. I can see why it failed. The Team Group memory has lots of issues in the memory overclock threads. Nobody matching the timings of the G. Skill memory with Team Group.

As I said in my edit, the later cpu tasks were completing in more normal times compared to the first. I would just let them run for a bit and make no changes for now.
13) Message boards : Number crunching : Would like to contribute. Need help. (Message 1939109)
Posted 6 days ago by Profile Keith Myers Special Project $250 donor
Post:
Yes Mike would be the one to ask for recommended tuning commandline parameters for AMD RX cards. But as has been stated, just get the basic system up and running and then ask for performance tuning help.
14) Message boards : Number crunching : New computer on the way (Message 1939108)
Posted 6 days ago by Profile Keith Myers Special Project $250 donor
Post:
I don't know, maybe the way you have memory access set up in the BIOS? The numbers I posted were for my 1800X running at 3.975Ghz with 3200Mhz CL14 memory. Your 3333Mhz should do equivalent unless you are running stock XMP. What exactly is the memory kit? If it is made with Samsung B-dies, you can tighten up the memory timings a lot with just the primary timings. Say moving from CAS 16 down to CAS14.

The Ryzen memory calculator is a handy tool. Only runs in Windows though but you have Windows systems so you can just plunk in the kit parameters and crank out the settings. The tool doesn't have to be run on the system you are calculating the timings for.

Ryzen DRAM Calculator 1.1.0 Beta 2 (overclocking DRAM on AM4)

The Ryzen Timing Checker DOES have to be run on the tested system though. But it prints out a nice synopsis of main and most important parameters. Ryzen Timing Checker 1.04

Plus I think you have the ROG Zenith Extreme mobo so you should . . . . have The Stilts memory presets in the BIOS to overclock the memory. That is what I did for the ROG Crosshair VII Hero mobos and the 2700X systems. I just chose The Stilt's B-die single sided 3466 CL14 preset and boom, the memory is running at 3466Mhz with tight CL14 timings.

This is my simple app_config.xml file for Seti.
<app_config>
  <app_version>
    <app_name>setiathome_v8</app_name>
    <plan_class>cuda90</plan_class>
    <avg_ncpus>1</avg_ncpus>
    <ngpus>1</ngpus>
    <cmdline>-nobs</cmdline>
  </app_version>

  <app_version>
    <app_name>astropulse_v7</app_name>
    <plan_class>opencl_nvidia_100</plan_class>
    <avg_ncpus>1</avg_ncpus>
    <ngpus>1</ngpus>
  </app_version>
<project_max_concurrent>11</project_max_concurrent>
</app_config>


You can see the <-nobs> no blocking sync called out on the cmdline entry. That lets the gpu task use a full cpu core. You should give that a try at some time.

[Edit] I just took another look at your completed cpu tasks. The Arecibo ones are looking a lot better and closer to what I am accustomed to seeing. The BLC tasks should be down in the 30 minute range. That first one was an outlier or something. Things look pretty good now.
15) Message boards : Number crunching : New computer on the way (Message 1939075)
Posted 6 days ago by Profile Keith Myers Special Project $250 donor
Post:
First WU's have started validating.

For a standard AR Arecibo task Task 6713309632 running at 4 Ghz and having equal run_time and cpu_time, I can't explain why this task took 90 minutes to finish. I do a standard 0.42-0.44 AR Arecibo task in 51-65 minutes at the same 4 Ghz.

What speed memory does your TR system use?

[Edit] I see the gpu tasks running without the -nobs option. The times still look very good. With that many cores you might get away with not using it. Still would like to see gpu completion times with it on for comparison to using the blocking sync.
16) Message boards : Number crunching : New computer on the way (Message 1939070)
Posted 6 days ago by Profile Keith Myers Special Project $250 donor
Post:
Everything looks good. Can't tell about the cpu runtimes with that overflow task. Will have to wait for others. What do you have for any core limitation? Do you have all 32 cores trying to run a cpu task?

Usually better to pull back the concurrent task count so that the cpu tasks don't get too overloaded. I like to keep cpu_time versus run_time approximately equal. You can put that into the app_config.xml file.

Shoot for 60-75% cpu utilization. I would suggest getting the GKrellm monitor from the Package Manager. That provides me with a quickly realized system state with the cores running and the cpu and gpu temps along with the fan speeds. You will need to get the lm-sensors package for the ability to read the SIO chip on your motherboard. Likely in the ITE-8665 family. That is handled by the it87 driver. The 18.04 distribution ships with the k10temp driver already installed and reporting the cpu core temp. There is a newer k10temp driver that reports the Tdie and Tctl temps. The Tdie temp reports the real cpu core temp after deducting the +27° C. offset that AMD builds into TR. The source code is here:

Linux Driver for ITE LPC chips

Temperature sensor driver for AMD Family 10h and later

Just follow the readme to make and install the drivers.
17) Message boards : Number crunching : New computer on the way (Message 1939061)
Posted 7 days ago by Profile Keith Myers Special Project $250 donor
Post:
Good to hear Kevin, I see the new Linux host in your computers. Will take a look at the first gpu task reported and see how it fares. With that 1080Ti and the <-nobs> no blocking sync option on, it should do a BLC task in around 75 seconds or less. Arecibo standard AR's in around 90 seconds. Arecibo VLAR's in around 3 minutes.

Did you go with the SSE41 cpu app? Did you see that there was a AMD version directory in the CUDA 9 special app distribution? TBar compiled the r3711 SSE41 app for both Intel and AMD architectures.

Yes, I like Linux. I like being able to control how I want the OS configured and have multiple choices and options, and not have some megalithic company dictate their choices on me.
18) Message boards : Number crunching : New computer on the way (Message 1939053)
Posted 7 days ago by Profile Keith Myers Special Project $250 donor
Post:
The 396 meta package should pull all that stuff in automatically. Most important is the opencl-icd-396 driver and the libcuda-1 driver. If you are just caring about the special app, then just the cuda driver is necessary. The only app that needs the opencl driver is the AP gpu app.
19) Message boards : Number crunching : New computer on the way (Message 1939048)
Posted 7 days ago by Profile Keith Myers Special Project $250 donor
Post:
Not sure of the issue you are having with 396. 390 will work as well. You will have to use the Synaptic Package Manager to grab the:

libnvidia-common-390
libnvidia-compute-390
libnvidia-decode-390
libnvidia-encode-390
libnvidia-gl-390
libnvidia-ifr1-390
libxnvctrl0
nvidia-compute-utils-390
nvidia-dkms-390
nvidia-driver-390
nvidia-kernel-common-390
nvidia-kernel-source-390
nvidia-modprobe
nvidia-profiler
nvidia-utils-390
nvidia-visual-profiler
libcuda1-390
nvidia-libopencl1-390
nvidia-opencl-icd-390
xserver-xorg-video-nvidia-390

Basically anything with 390 in its name from the Synaptic Package Manager. You need to be sure you grab the CUDA and OpenCL components matched to the driver version.
20) Message boards : Number crunching : Would like to contribute. Need help. (Message 1939047)
Posted 7 days ago by Profile Keith Myers Special Project $250 donor
Post:
Being a AMD fanboi, I would go with the Ryzen 1700X with more cores. If he would want to participate in more projects other than Seti, the extra cpu cores not supporting Seti gpu tasks could be put to use on other projects. The AMD graphics card being the questionable part of that build in my opinion. About the only project I am familiar with that preferences AMD gpu's is MilkyWay because of the superior double precision floating point specs compared to Nvidia. The RAM memory difference is not important as most distributed computing does not need massive amounts of memory.

I am not a fan of art deco case designs either. Give me a standard case size and shape and expansion capability is no concern.


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SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.