1) Message boards : News : An important note for Windows XP users (Message 49306)
Posted 1 day ago by Profile Retvari Zoltan
Windows XP users will notice that the present CUDA6.5 app (v8.49) will not work any longer at all after x April 2018.
The question is the exact date (x) when it will happen, as it was not declared in the original post and ever since.
The largest possible value for x is 17, because that's the date that app was deployed for the public to use.

In fact, it will be x-t, where t is the time used for internal testing between licensing and building the new app, and making it available to the public. From what I remember, that was pretty quick.
Well, it's 18th April, and the Windows XP app still working.
I ponder over how much longer it will work? Hours? Days? Weeks? Months? Years?
The longer is the better from my point of view...
2) Message boards : Number crunching : Bad batch of WU's (Message 49263)
Posted 5 days ago by Profile Retvari Zoltan
All tasks error out immediately with:
ERROR: file mdioload.cpp line 81: Unable to read bincoordfile
This should be fixed by the staff ASAP.
3) Message boards : News : An important note for Windows XP users (Message 49219)
Posted 21 days ago by Profile Retvari Zoltan
"The GeForce GTX 1080 and GTX 1070 support Windows 7 and above. There are no plans to add driver support Windows XP."
Manuel Guzman, Nvidia Customer Care, November 2016.
FYI: at the release of GTX 1080, I've successfully "hacked" the then-fresh NV driver (with CUDA 8.0) for Windows XP (x64), and used my GTX 1080 under Windows XP (x64) for crunching Einstein@home tasks. It doesn't worked with GPUGrid though. So there's no "physical" obstacle of using the GTX 10 series under Windows XP it just made up by NVidia.
I've reanimated my Windows XP x64 on my host with a GTX 1080 (with the latest Windows XP driver v368.81). (Don't be surprised if its page lists this host have Windows 10 - It has dual boot, but both OS starts the same BOINC manager, so the displayed OS depends on what I've booted into.) It's happily crunching CUDA4.2 CUDA5.0 and OpenCL tasks for SETI@Home. When it will have a lot of results, with a little luck I will be able check its performance against other GTX 1080's under different OS.
4) Message boards : Graphics cards (GPUs) : GTX 1080ti slow (Message 49201)
Posted 27 days ago by Profile Retvari Zoltan
PCIe3.0x16 required ?
No, but...
Now card connected via:
https://www.aliexpress.com/item/New-3-in-1-Molex-4Pin-SATA-6PIN-PCIE-PCI-E-PCI-Express-16x-Slot-Riser/32838716482.html?spm=a2g0s.9042311.0.0.W0tvgJ
You are using your cards through PCIe 2.0 x1, which has about 1/32 the bandwidth of PCIe 3.0 x16.
GPUGrid definitely needs more than that. (at least PCIe 3.0 x4 =~ PCIe 2.0 x8)

A single PCIe3.0 lane is about twice as fast as a single PCIe2.0 lane.
The overall data transmission speed of a given generation of PCIe connection scales in direct ratio of the number of lanes (x2, x4, x8, x16).
5) Message boards : News : An important note for Windows XP users (Message 49183)
Posted 29 days ago by Profile Retvari Zoltan
It's already happened, of course you will not notice anything until the next generation of GpuGrid Apps are released because current Apps support XP.
No. Windows XP users will notice that the present CUDA6.5 app (v8.49) will not work any longer at all after x April 2018.
The question is the exact date (x) when it will happen, as it was not declared in the original post and ever since.
6) Message boards : News : New publication: Molecular Simulation-Driven Fragment Screening for the Discovery of New CXCL12 Inhibitors (Message 49137)
Posted 47 days ago by Profile Retvari Zoltan
This is wonderful news!
You should announce it through BOINC manager's notifications as well.
7) Message boards : Number crunching : Gridcoin (Message 49130)
Posted 48 days ago by Profile Retvari Zoltan
A new client (v3.7.8.0) has been released.
This is a mandatory update, so you should download and install it as soon as possible.
Do not update from inside the wallet client (this option is removed from the last couple of releases anyway).

You can check it on github manually if there is a new version released:
https://github.com/gridcoin/Gridcoin-Research/releases

You can download the latest msi installer from here:
http://download.gridcoin.us/download/downloadstake/GridcoinResearch.msi
8) Message boards : Number crunching : lost 4 WUs seconds after enabling gtx-770 (Message 49079)
Posted 55 days ago by Profile Retvari Zoltan
So why did this happen?
This is a known problem of the present GPUGrid CUDA8.0 app (v9.18). CC3.0 cards (like the GTX 770) will produce this error if the host has multiple GPUs with different Compute Capabilities. (Your GTX 1070 Ti is CC6.1). You should disable the GTX 770, or move it to a different PC to avoid this.

See the App update 17 April 2017 thread
and the middle of the all WUs downloaded recently produce "computation error" right away thread.
9) Message boards : Number crunching : 113 mil credit loss on inactive system at boincstats (Message 49003)
Posted 58 days ago by Profile Retvari Zoltan
From your graph, it looks like it took a week before the change (-108mil) or so showed up on boincstats
ie 1-30 on your table to 2-9 on boincstats.
The data I've used comes from BOINCStats, I've simply swapped the columns and the rows.

This is what concerns me and I posted at gridcoin about this:

If it takes a week or months for boincstats to remove credits from a merge (I know you say there was none) then

The "extra credits" show up causing a large mining payoff (I am guessing of course), then I remove gridcoin as the "team", wait for the credit differential to be fixed, then register my old system as a new one, join the gridcoin team, and there is no record of the credit differential.

Seems like a security problem.
GridCoin does not based on BOINCStats, it takes the data directly from the project's servers.

I am currently mining using the grcpool and there is no way to do a merge while using the pool since the pool is the owner of the gpugrid account. However, once I switch to BAM! and start solo mining, possibly one could game the system using merge or whatever is causing the large credit changes.
Aw, then it's not the host I've checked on GPUGrid. Could you give me a link to the host's details on GPUGrid? Or could you check how many credits this host has according to GPUGrid?
10) Message boards : Number crunching : 113 mil credit loss on inactive system at boincstats (Message 49001)
Posted 58 days ago by Profile Retvari Zoltan
There is *more* strangeness in it than what meets the eye for the first sight:
1st: Your host has lost credit, which is strange
2nd: Your host lost credit 6 times, so its source could not be the "merge"
3rd: The rank of your host decreases while its total credit doesn't increase. This could be only if other hosts have lost credits on that day.
4th: Your host (#171317) has 151,883,400 credits today according to GPUGrid.
Date Total Credits Credit/Day Rank CHG 2018-02-19 182,645,879 0 1,686 +1 2018-02-18 182,645,879 0 1,685 -2 This is strange 2018-02-17 182,645,879 0 1,687 +2 2018-02-16 182,645,879 0 1,685 +3 2018-02-15 182,645,879 0 1,682 -2 This is strange 2018-02-14 182,645,879 0 1,684 -1 This is strange 2018-02-13 182,645,879 0 1,685 +4 2018-02-12 182,645,879 0 1,681 +7 2018-02-11 182,645,879 0 1,674 -1 This is strange 2018-02-10 182,645,879 0 1,675 +1 2018-02-09 182,645,879 0 1,674 -4 This is strange 2018-02-08 182,645,879 0 1,678 +1 2018-02-07 182,645,879 -48,350 1,677 +1 2018-02-06 182,694,229 -378,820 1,676 +8 2018-02-05 183,073,049 0 1,668 0 2018-02-04 183,073,049 0 1,668 +5 2018-02-03 183,073,049 0 1,663 -4 This is strange 2018-02-02 183,073,049 0 1,667 0 2018-02-01 183,073,049 0 1,667 +3 2018-01-31 183,073,049 -816,960 1,664 +3 2018-01-30 183,890,009 -108,314,676 1,661 +645 2018-01-29 292,204,685 -2,210,019 1,016 +10 2018-01-28 294,414,704 0 1,006 +3 2018-01-27 294,414,704 -56,834 1,003 +3 2018-01-26 294,471,538 0 1,000 +1 2018-01-25 294,471,538 0 999 +2 2018-01-24 294,471,538 0 997 -1 This is strange 2018-01-23 294,471,538 0 998 -1 This is strange 2018-01-22 294,471,538 0 999 0 2018-01-21 294,471,538 0 999 +5 2018-01-20 294,471,538 53 994 +1 2018-01-19 294,471,485 993 Host's creation
I can not explain this.
According to BOINCStats, your host is "First seen on 2017-08-07" which does not match with 2018-01-19, when it received the initial 294,471,485 credits.
This could be because the "merge", but it's still strange.


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