Author Topic: KopiemTu 2.0 - Nvidia 750Ti USB linux. Cuda 6.5 !!  (Read 218932 times)

Offline jk_14

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Re: Kopiemtu 1.0 - bootable linux image for Nvidia 750 Ti
« Reply #45 on: March 11, 2014, 10:10:30 AM »
Thank you for your answers , but where  can I insert manual cudaminer settings and are there any limitations or rules?
Like these:
Code: [Select]
-i 0 -l T5x24 -C 1 -H 2

cd /opt/miners/cudaminer
./cudaminer -i 0 -l T5x24 -C 1 -H 2 ...(and necessary options here, url, pass, etc)

It will be hard to avoid meeting with cudaminer README.txt, so please check:
https://github.com/cbuchner1/CudaMiner/blob/master/README.txt

Code: [Select]
--launch-config [-l] specify the kernel launch configuration per device.
                 This replaces autotune or heuristic selection. You can
                 pass the strings "auto" or just a kernel prefix like
                 F or K or T to autotune for a specific card generation
                 or a kernel prefix plus a lauch configuration like F28x8
                 if you know what kernel runs best (from a previous
                 autotune).

--interactive [-i] list of flags (0 or 1) to enable interactive
                 desktop performance on individual cards. Use this
                 to remove lag at the cost of some hashing performance.
                 Do not use large launch configs for devices that shall
                 run in interactive mode - it's best to use autotune!

--texture-cache [-C] list of flags (0 or 1 or 2) to enable use of the
                 texture cache for reading from the scrypt scratchpad.
                 1 uses a 1D cache, whereas 2 uses a 2D texture layout.
                 Cached operation has proven to be slightly faster than
                 noncached operation on most GPUs.

--hash-parallel [-H] scrypt also has a small SHA256 or Keccak component:
                      0 hashes this single threaded on the CPU.
                      1 to enable multithreaded hashing on the CPU.
                      2 offloads everything to the GPU (default)



Code: [Select]
-i 0 -l T5x24 -C 1 -H 2so this can be translated to our (JSON) configuration files:

...
"interactive" : "0",
"launch-config" : "T5x24",
"texture-cache" : "1",
"hash-parallel" : "2",
...

 (-H 2 is default option, so last line is not necessary)


Additionally, I have installed Midnight Commander - for as easy files edition as possible, mainly for linux newbies. As root user, type:
mc <Enter>
F4 edit files, first run allows to choose prefered file editor, and better use 'nano' than 'vi' (the only unix editor I use :) )

OP updated a bit.
« Last Edit: March 11, 2014, 10:21:05 PM by jk_14 »

Offline ericmad

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Re: Kopiemtu 1.0 - bootable 64bit linux image for Nvidia 750 Ti
« Reply #46 on: March 13, 2014, 12:01:53 AM »
  I tried this out to see if i could get 7 gpus working on my rig.  mobo : z87-g45.  i've been unable to get windows to work with all 7, keep getting "code 12" out of resources error.  however all the cards are seen in the bios, so i figured it was an OS issue.  Gave this a try, and still, only able to get 6 cards mining.  Is there a config file to specify the # of gpus to 7??

Offline Sy

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Re: Kopiemtu 1.0 - bootable 64bit linux image for Nvidia 750 Ti
« Reply #47 on: March 13, 2014, 07:35:23 AM »
So - a friend finally got the time to test this with our new 750ti rig and reported back that it is working like a charm - we are still trying to figure out how to OC in linux but thats another topic i guess, any tips would be welcome :D

Offline jk_14

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Re: Kopiemtu 1.0 - bootable 64bit linux image for Nvidia 750 Ti
« Reply #48 on: March 13, 2014, 08:21:11 AM »
  I tried this out to see if i could get 7 gpus working on my rig.  mobo : z87-g45.  i've been unable to get windows to work with all 7, keep getting "code 12" out of resources error.  however all the cards are seen in the bios, so i figured it was an OS issue.  Gave this a try, and still, only able to get 6 cards mining.  Is there a config file to specify the # of gpus to 7??


Yes, I know - it seems the only thing I forgot about, unfortunately...
(probably because until now I have only 2 different 750 Ti cards, and I'm still waiting for next 7, my plan is to run 8 simultaneously)

I suppose this solution should work, from command line:

1. cd /boot/syslinux
2. as root - edit syslinux.cfg (use Midnight Commander if you like)
3. change this line:

Code: [Select]
APPEND ro root=UUID=f6888d2a-bdfb-4cfe-b1d4-35a54e5d3690 initrd=/boot/initrd.img-3.11.0-17-genericinto:
Code: [Select]
APPEND ro root=UUID=f6888d2a-bdfb-4cfe-b1d4-35a54e5d3690 initrd=/boot/initrd.img-3.11.0-17-generic vmalloc=192M
4. reboot

192M should fix it (next value to try: vmalloc=256M)


Confirm if it helps, please.
« Last Edit: March 13, 2014, 08:50:07 AM by jk_14 »

Offline jk_14

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Re: Kopiemtu 1.0 - bootable 64bit linux image for Nvidia 750 Ti
« Reply #49 on: March 13, 2014, 10:04:59 AM »

it is working like a charm


My pleasure, good to hear :D



- we are still trying to figure out how to OC in linux but thats another topic i guess, any tips would be welcome :D


I made one try with nvflash, copy of settings from one OC version of 750 Ti to second, not such overclocked (Gigabyte). After this modification, Gigabyte was not mining at all :(

So my first tip is: "Better buy OC version." :)
(especially, that power consumption is almost equal in my case)


Sy, could you provide again a new single archive (packed with WinRAR 5.01, please)
I know there are some problems sometimes with downloading from Mega.co.nz
« Last Edit: March 13, 2014, 10:14:07 AM by jk_14 »

Offline Sy

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Re: Kopiemtu 1.0 - bootable 64bit linux image for Nvidia 750 Ti
« Reply #50 on: March 13, 2014, 10:07:30 AM »
Oh yeah, forgot about that - uploading...

http://88.198.74.99/kopiemtu-1.0.zip is working again.
« Last Edit: March 13, 2014, 11:49:17 AM by Sy »

Offline jk_14

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Re: Kopiemtu 1.0 - bootable 64bit linux image for Nvidia 750 Ti
« Reply #51 on: March 13, 2014, 01:45:06 PM »
Oh yeah, forgot about that - uploading...

http://88.198.74.99/kopiemtu-1.0.zip is working again.

Thanks a lot! OP updated.

Offline ericmad

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Re: Kopiemtu 1.0 - bootable 64bit linux image for Nvidia 750 Ti
« Reply #52 on: March 13, 2014, 05:03:23 PM »
So - a friend finally got the time to test this with our new 750ti rig and reported back that it is working like a charm - we are still trying to figure out how to OC in linux but thats another topic i guess, any tips would be welcome :D

i think your best bet would be to overclock through gpu bios modding. 

Offline ericmad

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Re: Kopiemtu 1.0 - bootable 64bit linux image for Nvidia 750 Ti
« Reply #53 on: March 13, 2014, 05:05:37 PM »
  I tried this out to see if i could get 7 gpus working on my rig.  mobo : z87-g45.  i've been unable to get windows to work with all 7, keep getting "code 12" out of resources error.  however all the cards are seen in the bios, so i figured it was an OS issue.  Gave this a try, and still, only able to get 6 cards mining.  Is there a config file to specify the # of gpus to 7??


Yes, I know - it seems the only thing I forgot about, unfortunately...
(probably because until now I have only 2 different 750 Ti cards, and I'm still waiting for next 7, my plan is to run 8 simultaneously)

I suppose this solution should work, from command line:

1. cd /boot/syslinux
2. as root - edit syslinux.cfg (use Midnight Commander if you like)
3. change this line:

Code: [Select]
APPEND ro root=UUID=f6888d2a-bdfb-4cfe-b1d4-35a54e5d3690 initrd=/boot/initrd.img-3.11.0-17-genericinto:
Code: [Select]
APPEND ro root=UUID=f6888d2a-bdfb-4cfe-b1d4-35a54e5d3690 initrd=/boot/initrd.img-3.11.0-17-generic vmalloc=192M
4. reboot

192M should fix it (next value to try: vmalloc=256M)


Confirm if it helps, please.

will give this a try now...

Offline ericmad

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Re: Kopiemtu 1.0 - bootable 64bit linux image for Nvidia 750 Ti
« Reply #54 on: March 13, 2014, 05:28:38 PM »
  I tried this out to see if i could get 7 gpus working on my rig.  mobo : z87-g45.  i've been unable to get windows to work with all 7, keep getting "code 12" out of resources error.  however all the cards are seen in the bios, so i figured it was an OS issue.  Gave this a try, and still, only able to get 6 cards mining.  Is there a config file to specify the # of gpus to 7??


Yes, I know - it seems the only thing I forgot about, unfortunately...
(probably because until now I have only 2 different 750 Ti cards, and I'm still waiting for next 7, my plan is to run 8 simultaneously)

I suppose this solution should work, from command line:

1. cd /boot/syslinux
2. as root - edit syslinux.cfg (use Midnight Commander if you like)
3. change this line:

Code: [Select]
APPEND ro root=UUID=f6888d2a-bdfb-4cfe-b1d4-35a54e5d3690 initrd=/boot/initrd.img-3.11.0-17-genericinto:
Code: [Select]
APPEND ro root=UUID=f6888d2a-bdfb-4cfe-b1d4-35a54e5d3690 initrd=/boot/initrd.img-3.11.0-17-generic vmalloc=192M
4. reboot

192M should fix it (next value to try: vmalloc=256M)


Confirm if it helps, please.

will give this a try now...

no dice.  tried 192M and 256M, but still only 6 miners.  any other suggestions?

Offline Sy

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Re: Kopiemtu 1.0 - bootable 64bit linux image for Nvidia 750 Ti
« Reply #55 on: March 13, 2014, 06:35:21 PM »
So - a friend finally got the time to test this with our new 750ti rig and reported back that it is working like a charm - we are still trying to figure out how to OC in linux but thats another topic i guess, any tips would be welcome :D

i think your best bet would be to overclock through gpu bios modding.

Thats what i thought, will have to plug one card into windows then ^^

Offline ericmad

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Re: Kopiemtu 1.0 - bootable 64bit linux image for Nvidia 750 Ti
« Reply #56 on: March 13, 2014, 08:54:18 PM »
So - a friend finally got the time to test this with our new 750ti rig and reported back that it is working like a charm - we are still trying to figure out how to OC in linux but thats another topic i guess, any tips would be welcome :D

i think your best bet would be to overclock through gpu bios modding.

Thats what i thought, will have to plug one card into windows then ^^

here's what i'm getting with a modified bios, gigabyte WF x6.  was up late last night working on it..  now gonna let it run for a while for stability testing..  was getting slightly higher hashrate in windows 7 64bit, using x86 cudaminer and the new nvidia drivers, ~1830khs total. 

Offline jk_14

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Re: Kopiemtu 1.0 - bootable 64bit linux image for Nvidia 750 Ti
« Reply #57 on: March 13, 2014, 09:21:37 PM »

no dice.  tried 192M and 256M, but still only 6 miners.  any other suggestions?

not yet...
could you PM me output from command: dmesg
with printout regarding failed 7 cards initialisation?

Offline jk_14

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Re: Kopiemtu 1.0 - bootable 64bit linux image for Nvidia 750 Ti
« Reply #58 on: March 13, 2014, 09:26:21 PM »

here's what i'm getting with a modified bios, gigabyte WF x6.  was up late last night working on it..  now gonna let it run for a while for stability testing..  was getting slightly higher hashrate in windows 7 64bit, using x86 cudaminer and the new nvidia drivers, ~1830khs total. 



If you want, I may test your modified bios with my gigabyte WF. With original bios I have almost 270kH/s, so you have +10% more. Really nice setup.
Do you monitor also power consumption at the wall?

Offline ericmad

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Re: Kopiemtu 1.0 - bootable 64bit linux image for Nvidia 750 Ti
« Reply #59 on: March 13, 2014, 09:37:45 PM »

no dice.  tried 192M and 256M, but still only 6 miners.  any other suggestions?

not yet...
could you PM me output from command: dmesg
with printout regarding failed 7 cards initialisation?

pm sent