I guess he is mining TTC

My only idea:

root@linux:~# screen -dm CudaMiner/cudaminer --benchmark; sleep 1; screen -ls
No Sockets found invar/run/screen/S-root.

root@linux:~# gdb screen
GNU gdb (GDB) 7.6.1-ubuntu
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols fromusr/bin/screen...(no debugging symbols found)...done.
(gdb) set args -dm CudaMiner/cudaminer --benchmark
(gdb) run
Starting program:usr/bin/screen -dm CudaMiner/cudaminer --benchmark
[Inferior 1 (process 4349) exited normally]
(gdb)


(and second observation: if you run screen and then you run cudaminer inside - all is OK)

and this:

root@linux:~# CudaMiner/cudaminer --benchmark
           *** CudaMiner for nVidia GPUs by Christian Buchner ***
                     This is version 2014-02-28 (beta)
        based on pooler-cpuminer 2.3.2 (c) 2010 Jeff Garzik, 2012 pooler
            Cuda additions Copyright 2013,2014 Christian Buchner
          LTC donation address: LKS1WDKGED647msBQfLBHV3Ls8sveGncnm
          BTC donation address: 16hJF5mceSojnTD3ZTUDqdRhDyPJzoRakM
          YAC donation address: Y87sptDEcpLkLeAuex6qZioDbvy1qXZEj4
[2014-03-04 23:43:21] 1 miner threads started, using 'scrypt' algorithm.
[2014-03-04 23:43:21] GPU #0: GeForce GTX 750 Ti with compute capability 5.0
[2014-03-04 23:43:21] GPU #0: interactive: 0, tex-cache: 0 , single-alloc: 0
[2014-03-04 23:43:21] GPU #0: 32 hashes 4.0 MB per warp.
[2014-03-04 23:43:22] GPU #0: Performing auto-tuning (Patience...)
[2014-03-04 23:43:22] GPU #0: maximum total warps (BxW): 491
^C
root@linux:~# screen CudaMiner/cudaminer --benchmark
[screen is terminating]
root@linux:~# gdb screen
GNU gdb (GDB) 7.6.1-ubuntu
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols fromusr/bin/screen...(no debugging symbols found)...done.
(gdb) set args CudaMiner/cudaminer --benchmark
(gdb) run
Starting program:usr/bin/screen CudaMiner/cudaminer --benchmark
[screen is terminating]

Program received signal SIGHUP, Hangup.
0x00007f4773f727e0 in __pause_nocancel () at ../sysdeps/unix/syscall-template.S:81
81      ../sysdeps/unix/syscall-template.S: No such file or directory.
(gdb)

But the problem is:  it is not running at all.
You can find result of your task above (bold)

I have almost done 64bit linux bootable image for Nvidia Ti 750.
(similar to BAMT - any person familiar with BAMT should switch very easy to this new OS)

The only thing which block the image upload - is this problem regarding detached screen with cudaminer.
Imho a significant regress - would be lack of automated cudaminer startup, in case of power failure for example or after manual reboot.
And there are plenty of BAMT based miners...

Hi Christian,

Dropping off a link to a gpu miner with a variety of algo support (AMD friendly). As the source is available, perhaps you could find a shortcut into getting new algo's supported in cudaminer, whichever they happen to be...

https://bt.irlbtc.com/view/475795.0

Hm, later realized this is based on sphlib, which might not be anything new for you anyways...

http://www.saphir2.com/sphlib/

Off I go! Cheers,
Myagui

reference these: https://bt.irlbtc.com/view/167229.msg4953208#msg4953208
http://www.reddit.com/r/dogemining/comments/1w4piu/cuda_miner_using_the_right_kernel_launch_config/ and you can use this as a resource for info
http://www.ozone3d.net/gpu_caps_viewer/

Also checkout the cudaMiner Readme file

Thanks for the reply. I am familiar with those posts, but they're pretty much only valid for the older (non-keccak) miners, with the new ones the launch configs don't work the same way (e.g. I can use T12x32 launch configs on the older december 18th 2013 miner, but only get 1Kh/s on the newer ones). My post 8096 proves it.

The readme file also doesn't mention much about scrypt kernels.

It's one thing that Nvidia isn't that good at mining against the red team, and its another thing that there aren't any good miners out there, to even take advantage of the little that the green team has to offer.

I know it will take some time but try and find what you can on Nvidia Cuda training...