Installation and running of mkfactc

[VictordeHolland]

I had a similar issue with Ubuntu 17.10 and [mfaktc-0.21 cuda6.5 linux] on a (old) GTX570

The NVIDIA drivers (390.25) installed without problems from the software & updates, rebooted and
nvidia-smi worked

~$ nvidia-smi     
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 390.25                 Driver Version: 390.25                    |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce GTX 570     Off  | 00000000:01:00.0 N/A |                  N/A |
| 24%   59C    P0    N/A /  N/A |    442MiB /  1218MiB |     N/A      Default |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|    0                    Not Supported                                       |
+-----------------------------------------------------------------------------+

Moved the mfaktc cudart libs to usr/lib (which seemed logical, since libnvidia was also in that dir), but no sigar.

I ended up installing the CUDA toolkit 8.0 (I hoped it would include the necessary libs),

~$ nvcc --version
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2016 NVIDIA Corporation
Built on Tue_Jan_10_13:22:03_CST_2017
Cuda compilation tools, release 8.0, V8.0.61

Still complained about the libs not in the right place.
I noticed the CUDA toolkit 8.0 put its libs in usr/lib/x86_64-linux-gnu (libcudart.so.8.0 and libcudart8.0.61) so I copied the 6.5 libs to that dir and now mfaktc 0.21 works. :)

~/Documents/mfaktc-0.21_cuda6.5_linux64$ ./mfaktc.exe -st2

Selftest statistics
  number of tests           26192
  successfull tests         26192

  kernel             | success |   fail
  -------------------+---------+-------
  UNKNOWN kernel     |      0  |      0
  71bit_mul24        |   2586  |      0
  75bit_mul32        |   2682  |      0
  95bit_mul32        |   2867  |      0
  barrett76_mul32    |   1096  |      0
  barrett77_mul32    |   1114  |      0
  barrett79_mul32    |   1153  |      0
  barrett87_mul32    |   1066  |      0
  barrett88_mul32    |   1069  |      0
  barrett92_mul32    |   1084  |      0
  75bit_mul32_gs     |   2420  |      0
  95bit_mul32_gs     |   2597  |      0
  barrett76_mul32_gs |   1079  |      0
  barrett77_mul32_gs |   1096  |      0
  barrett79_mul32_gs |   1130  |      0
  barrett87_mul32_gs |   1044  |      0
  barrett88_mul32_gs |   1047  |      0
  barrett92_mul32_gs |   1062  |      0

selftest PASSED!