Gridcoin (GRC) - first coin utilizing BOINC - Official Thread

[johnatx]

I am using a 7970. Don't think there is anything wrong for my GPU. It used to pump out 570KHPS even on Friday without a  problem and I was not pushing its limit.

I think this has to do with Scrypt Sleep. Because whether the status goes to Sleep on my mining console, my GPU is disabled automatically.
Are you sure Scrypt Sleep is not working yet? Is there a way to turn it off in gridcoin.conf file?

My leaderboard position is lagging. Now at ~108. This is partly due to my changing the wallet to get around the crashing issue. I used to be at ~35 leaderboard position before.

I am going to leave it running for a few days and see if it improves assuming some of GPU will be used for BOINC credits too.

what kind of gpu do you have and wahy are your setting? I can mine fine with mine with no decrease in hash speed so it is definitely something on your end.

When I use an external cgminer, I only got ~105KHPS.
I thought Scrypt Sleep is already required.
I was getting 570KHPS earlier on Friday. Ever since I re-sync on Gridcoin with a loss of 7K GRCs, I started getting 105KHPS.
So I suspect this must be something related with Gridcoin client monitoring the GPU usage and reduce it accordingly due to BOINC credits.
Other than that, I can not think of any other reasons.

Scrypt sleep is not functional @ the moment. Try an external gui-miner and see what kind of speed you get.

I am using the embedded cgminer downloaded along with the Gridcoin client. I used to get 570KHPS. Now it is 90KHPS.
My daily credit is about ~1600 these days. Not that high. My Scrypt sleep level is at only 69% currently.

Are you mining with with guiminer external to Gridcoin, or internal miner?

BenHur and Traderman, thanks for the reply and help.

Yes, I tried rebuilding the blockchain after blowing away the Roaming directory, reinstalling the client etc. but it did not help.

I went all the way back to early march and found one wallet which can be recognized by the client without the "salvage failed" error.

However, after syncing up, it did not retrieve all the coins I had from Friday. There is a difference of 7K coins lost.

I suspect that I was in a hard fork somewhere and kept mining without realizing the fork. I just don't understand why the 7K coins were accepted by the network just fine. Yet when I sync again, it just disappeared.

Now I started mining again but found out that my hash rate dropped to ~100KH. Many times the miner is disabled automatically.
I suspect that this is caused by the Scrypt-Sleep algorithm but am not sure.
My Leaderboard Posistion is ~100. 100KH is just too slow and I don't know how many days will it take to solve a block.

Can you guys comment on the new Hash rate? Should I accept this hash rate or there is something I need to tweak to improve it.

Try that, that should work!

It seems Rob has updated the gridcoin.us back to 2.1.0.7. I downloaded it and was able to sync.

However, I kept getting "wallet.dat corrupt, salvage failed" errors.

I tried all my backup wallets and all with the same error.

Also tried "gridcoin_qt -salvagewallet -rescan -reindex" with no luck.

Anybody has better idea on how to recover the wallet.

I was running 2.1.0.4 earlier. Could that be a problem?

Does anybody have the 2.1.0.4 version so that I could try whether I can recover the wallet?

Your help will be greatly appreciated.

Have you tried to rebulit the bolck chain?
You can delete the files in "C:\Users\your PC user name\AppData\Roaming\Gridcoin" ,only  leave gridcoin.conf  and wallet.dat.Then run the wallet software  Run as Administrator,the wallet software will restat and update.WHen the update done,it will download the blocks chain.

Hope it works.

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[BenHur]

I have 2 r9 280X and 1 7950
I use external cgminer,and it always works fine about three months.

After update the wallet software yesterday,the speed is just like before.
Here is my cgminer.conf,r9 280x got 700~720kh/s,7950 got 520kh/s:


{
"pools" : [
   {
      "url" : "127.0.0.1:9332",
      "user" : "benhur",
      "pass" : "1"
   }
]
,
"intensity" : "13,13,13",
"vectors" : "1,1,1",
"worksize" : "256,256,256",
"kernel" : "scrypt,scrypt,scrypt",
"lookup-gap" : "2,2,2",
"thread-concurrency" : "8192,8192,8192",
"shaders" : "2048,2048,2048",
"gpu-engine" : "0-1050,0-1050,0-960",
"gpu-fan" : "30-55,30-55,30-55",
"gpu-memclock" : "1500,1500,1250",
"gpu-memdiff" : "0,0,0",
"gpu-powertune" : "0,0,0",
"gpu-vddc" : "0.000,0.000,0.000",
"temp-cutoff" : "95,100,100",
"temp-overheat" : "95,100,100",
"temp-target" : "60,60,60",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "2",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scantime" : "7",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}

[johnatx]

Thanks, Benhur.
I used the following cgminer.conf for 7970 and got 230KHPS.
I was using "gpu-threads" : "1", after changing to 2, the performance improved from 110KHPS.
But no matter what I do next, it is capped at 240KHPS. I can not increase the intensity either as the HW error increase dramatically if I change it to 14 or 15.

What is your Scrypt Sleep level?

{
"pools" : [
   {
      "url" : "http://127.0.0.1:9332",
      "user" : "john",
      "pass" : "1"
   }
]
,
"intensity" : "13",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "2",
"thread-concurrency" : "8192",
"shaders" : "2048",
"gpu-engine" : "1100",
"gpu-fan" : "30-55",
"gpu-memclock" : "1500",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "0.000",
"temp-cutoff" : "100",
"temp-overheat" : "100",
"temp-target" : "65",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "1",
"gpu-threads" : "2",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scantime" : "7",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}

I have 2 r9 280X and 1 7950
I use external cgminer,and it always works fine about three months.

After update the wallet software yesterday,the speed is just like before.
Here is my cgminer.conf,r9 280x got 700~720kh/s,7950 got 520kh/s:


{
"pools" : [
   {
      "url" : "127.0.0.1:9332",
      "user" : "benhur",
      "pass" : "1"
   }
]
,
"intensity" : "13,13,13",
"vectors" : "1,1,1",
"worksize" : "256,256,256",
"kernel" : "scrypt,scrypt,scrypt",
"lookup-gap" : "2,2,2",
"thread-concurrency" : "8192,8192,8192",
"shaders" : "2048,2048,2048",
"gpu-engine" : "0-1050,0-1050,0-960",
"gpu-fan" : "30-55,30-55,30-55",
"gpu-memclock" : "1500,1500,1250",
"gpu-memdiff" : "0,0,0",
"gpu-powertune" : "0,0,0",
"gpu-vddc" : "0.000,0.000,0.000",
"temp-cutoff" : "95,100,100",
"temp-overheat" : "95,100,100",
"temp-target" : "60,60,60",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "2",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scantime" : "7",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}

[traderman]

I had that same error with my 7950 rig, once i added more ram i could increase the intensity and everything was running fine.

Thanks, Benhur.
I used the following cgminer.conf for 7970 and got 230KHPS.
I was using "gpu-threads" : "1", after changing to 2, the performance improved from 110KHPS.
But no matter what I do next, it is capped at 240KHPS. I can not increase the intensity either as the HW error increase dramatically if I change it to 14 or 15.

What is your Scrypt Sleep level?

{
"pools" : [
   {
      "url" : "http://127.0.0.1:9332",
      "user" : "john",
      "pass" : "1"
   }
]
,
"intensity" : "13",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "2",
"thread-concurrency" : "8192",
"shaders" : "2048",
"gpu-engine" : "1100",
"gpu-fan" : "30-55",
"gpu-memclock" : "1500",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "0.000",
"temp-cutoff" : "100",
"temp-overheat" : "100",
"temp-target" : "65",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "1",
"gpu-threads" : "2",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scantime" : "7",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}

I have 2 r9 280X and 1 7950
I use external cgminer,and it always works fine about three months.

After update the wallet software yesterday,the speed is just like before.
Here is my cgminer.conf,r9 280x got 700~720kh/s,7950 got 520kh/s:


{
"pools" : [
   {
      "url" : "127.0.0.1:9332",
      "user" : "benhur",
      "pass" : "1"
   }
]
,
"intensity" : "13,13,13",
"vectors" : "1,1,1",
"worksize" : "256,256,256",
"kernel" : "scrypt,scrypt,scrypt",
"lookup-gap" : "2,2,2",
"thread-concurrency" : "8192,8192,8192",
"shaders" : "2048,2048,2048",
"gpu-engine" : "0-1050,0-1050,0-960",
"gpu-fan" : "30-55,30-55,30-55",
"gpu-memclock" : "1500,1500,1250",
"gpu-memdiff" : "0,0,0",
"gpu-powertune" : "0,0,0",
"gpu-vddc" : "0.000,0.000,0.000",
"temp-cutoff" : "95,100,100",
"temp-overheat" : "95,100,100",
"temp-target" : "60,60,60",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "2",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scantime" : "7",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}

[BenHur]

My Scrypt Sleep level is 80.46%,now in 68th.

Sometimes the video drivers got error,and the mining speed can't reach normal speed.
Uninstall the old one with amd cleanup util and reinstall the new video driver may help.

[johnatx]

I was wrestling on this in the past couple of days. In the end, it appears I have memory leak or something.
I ended up restarting the computer and surprisingly my hash rate is back to normal.

Much appreciated for the help, BenHur and Traderman.

John

My Scrypt Sleep level is 80.46%,now in 68th.

Sometimes the video drivers got error,and the mining speed can't reach normal speed.
Uninstall the old one with amd cleanup util and reinstall the new video driver may help.

[aigeezer]

I'm getting an "untrusted connection" message from the usual https c-cex link right now. Anyone know what's up?

Edit: it's normal again now and the site has a new look. I guess they were just in the middle of maintenance. Probably heartbleed jitters on my part.

[fush]

downloaded client from grid coin.us
can't sync .....
added nodes from https://cryptocointalk.com/topic/9199-gridcoin-supernodes/

re installed 3times rebuild block chain nothing worked....
google says GRIDCOIN is more likely fail coin... how many forks have there been every 2post is about sync Problems or forks...
can someone please make an FAQ how to instal this wallet or sync it...
Thanks

[lynn_402]

downloaded client from grid coin.us
can't sync .....
added nodes from https://cryptocointalk.com/topic/9199-gridcoin-supernodes/

re installed 3times rebuild block chain nothing worked....
google says GRIDCOIN is more likely fail coin... how many forks have there been every 2post is about sync Problems or forks...
can someone please make an FAQ how to instal this wallet or sync it...
Thanks

Have you tried upgrading from the console?
Also, that's weird but going in option > network and unchecking the two boxes made it work for me.
Good luck; the client is indeed rough around the edges, but a coin that contributes to science is a unique concept that is worth supporting and has lot of potential.

[Gridcoin]

The command posted above worked to get my other rig working/mining but I think I may just switch those other two back to potcoin and sell that to buy some GRC   The mining process is pretty resource intensive and the biggest issue is running the GPUs and the CPU at 100%, cpu at 100% lowers the gpu speed but also draws a TON of power, I have a 1300watt platinum psu in some of these rigs and w/ 3-4 gpus + cpu its just to much.

Seems like its faster to mine something else and just buy the coins from you guys

Chiz,
Whats the status on your gridcoins?  How many did you mine so far?  Ill chip in a few thousand to help cover the loss.
BTW, I was able to add that command you requested from BlackCoin, but it wont be out until we release CPUminers release, and re-open our code repository with a new checkout-compile system.
So, if you can wait a couple of weeks, you can try resending that tx to the user.

Rob H.

[Gridcoin]

I was just reading through the Gridcoin Reddit page and there was a very interesting suggestion to have custom Boinc projects like 3D rendering and have miners getting bonus payments for participating. I think this would be very entertaining for all GRC miners and would strengthen the community quite a bit.

http://www.reddit.com/r/gridcoin/comments/22k6cs/what_are_some_of_the_first_places_that_might/

This is a good idea, and on that front, I made some progress.  I have tested the creation of our very own boinc project, for the Gridcoin Foundation, thay may include humanitarian voting buttons, a Gridcoin Police module, and a stock-option analyzer.

The Gridcoin Boinc project can be cpu-mined like other boinc projects.
Also, our future extensibility allows users to "plug in" whitelisted boinc projects into gridcoin, without an app update.  All network stats are re-tallied automatically.

Also, if we add in 3d farm rendering, we can plug that into the foundation as a windows application.

This is not "pie in the sky" either, Im very serious, and our devs (that is my helper and I) have already created an actual boinc project, so this is very exciting for our future.

Rob

[Gridcoin]

downloaded client from grid coin.us
can't sync .....
added nodes from https://cryptocointalk.com/topic/9199-gridcoin-supernodes/

re installed 3times rebuild block chain nothing worked....
google says GRIDCOIN is more likely fail coin... how many forks have there been every 2post is about sync Problems or forks...
can someone please make an FAQ how to instal this wallet or sync it...
Thanks

Have you tried upgrading from the console?
Also, that's weird but going in option > network and unchecking the two boxes made it work for me.
Good luck; the client is indeed rough around the edges, but a coin that contributes to science is a unique concept that is worth supporting and has lot of potential.

All, if you have problems syncing after downloading the "Prod" MSI, please upgrade like Andrew suggested.  I believe we have an older MSI sitting out there, and I will fix it asap, but the version should be "2.1.0.7" in order to sync.

[Gridcoin]

Cpu mining

Traderman was asking about the status of the CPU Mining release (which does contain the heartbleed fix).

We've been working hard on the cpu miner version, focusing on testing it properly for the last 3 weeks, and we are running a little behind schedule due to a few technical problems.

However, I would like to announce this version is better than we expected, including new features that were only possible to be included while the body was on the O/R table.

For example, we added ASIC resistance, requiring GPU miners to post boinc CPIDs/RAC/Project Name/BoincAuthkeys along with getwork() requests, thereby forcing our miners to run boinc.  Also, we added in CPU PoB algo resistance to slow down the ability to port the Cpu miner code to a GPU.  We did that by adding in a brand new algo to the coin:  AES512 encrypted blockhashes.  Since each CPU hash must make a round trip after being skein hashed, then AES encrypted, it will be much harder to port AES to a GPU due to the large code footprint and business logic requirements to shift the RAC inside the Skeinhash to the proper positions in order to test the validity of the AES hash.

The code is now 95% tested, and we are in the burn-in phase.  I envision testing for a few more days, and then as we get closer to the weekend, announcing the exact block number for cutover and date to allow the exchanges to be ready to switch.  If I were to take a guess, I would say within 7 days.

Best Regards,
Rob

[traderman]

If we can add our own custom Boinc projects like 3D rendering that can be very exciting for the community. There is so much potential there I can't even begin to imagine. I really can't wait for the CPU mining to come back, I was really enjoying it before.

I was just reading through the Gridcoin Reddit page and there was a very interesting suggestion to have custom Boinc projects like 3D rendering and have miners getting bonus payments for participating. I think this would be very entertaining for all GRC miners and would strengthen the community quite a bit.

http://www.reddit.com/r/gridcoin/comments/22k6cs/what_are_some_of_the_first_places_that_might/

This is a good idea, and on that front, I made some progress.  I have tested the creation of our very own boinc project, for the Gridcoin Foundation, thay may include humanitarian voting buttons, a Gridcoin Police module, and a stock-option analyzer.

The Gridcoin Boinc project can be cpu-mined like other boinc projects.
Also, our future extensibility allows users to "plug in" whitelisted boinc projects into gridcoin, without an app update.  All network stats are re-tallied automatically.

Also, if we add in 3d farm rendering, we can plug that into the foundation as a windows application.

This is not "pie in the sky" either, Im very serious, and our devs (that is my helper and I) have already created an actual boinc project, so this is very exciting for our future.

Rob

[jman887854]

GRC was number 1 several days ago on the mintpal voting. It had over 100,000 votes.  Now it is number 12 with 38,000 votes? What happened?

[asdlolciterquit]

GRC was number 1 several days ago on the mintpal voting. It had over 100,000 votes.  Now it is number 12 with 38,000 votes? What happened?

are you sure was GRC and not a coin with a similar name like GDC?

[lynn_402]

GRC was number 1 several days ago on the mintpal voting. It had over 100,000 votes.  Now it is number 12 with 38,000 votes? What happened?

are you sure was GRC and not a coin with a similar name like GDC?

Yeah, as someone who votes almost everyday, I can confirm we did not get to 100000.

PS. don't forget to also vote on Cryptsy.

[andrewp]

GRC was number 1 several days ago on the mintpal voting. It had over 100,000 votes.  Now it is number 12 with 38,000 votes? What happened?

Hi,

it was GRS - GroestlCoin and it got listed.

Andrew.

[jman887854]

Ah Ok. Thanks don't know how I mixed that up.

[CryptoBlox]

Block Explorer is now up and running!

cryptoblox.com/chain/Gridcoin