GPU LL Testing FAQ - Page 15

chris2be8 · 2018-12-12, 16:50

I'll try to help, but I don't run CUDALucas so I can't be sure I can fix it for you.

First run echo $LD_LIBRARY_PATH which will say what it's set to now.

On my system where I run CUDA I added the following to my .bashrc file:

Code:

# For CUDA
export PATH=/usr/local/cuda-7.5/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/cuda-7.5/lib64:/usr/lib/nvidia-current/:$LD_LIBRARY_PATH

Update the paths to wherever your programs are. You need to add the path to the directory libcufft.so.6.5 and libcudart.so.6.5 are in to LD_LIBRARY_PATH (the pathnames are separated by a :).

Then log on again to make it pick up the updates and run echo $LD_LIBRARY_PATH again to make sure it worked.

Chris

Blackadder · 2018-12-14, 08:40

Quote:

Originally Posted by chris2be8

I'll try to help, but I don't run CUDALucas so I can't be sure I can fix it for you.

First run echo $LD_LIBRARY_PATH which will say what it's set to now.

On my system where I run CUDA I added the following to my .bashrc file:

Code:

# For CUDA
export PATH=/usr/local/cuda-7.5/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/cuda-7.5/lib64:/usr/lib/nvidia-current/:$LD_LIBRARY_PATH

Update the paths to wherever your programs are. You need to add the path to the directory libcufft.so.6.5 and libcudart.so.6.5 are in to LD_LIBRARY_PATH (the pathnames are separated by a :).

Then log on again to make it pick up the updates and run echo $LD_LIBRARY_PATH again to make sure it worked.

Chris

Darn it, I need to pay more attention. This page: https://stackoverflow.com/questions/...linux#13428971 and your answer didn't work, but only because I now realize I have CUDA 10 installed, which only has libcufft.so.10.0 and libcudart.so.10.0.

I went ahead and uninstalled cuda, downloaded cuda toolkit 6.5 from the archives, and installed it again, but it automatically reinstalled cuda 10 for some reason.

Anyway, your answer was useful. Thank you. If I can fix this I'll probably get it to work.

Blackadder · 2018-12-14, 12:29

Darn

Code:

blackadder@LinuxMint:~/MEGA/Prime95$ ldd CUDALucas-6.5 
	linux-vdso.so.1 (0x00007ffea0fd9000)
	libcufft.so.6.5 => /usr/local/cuda-6.5/lib64/libcufft.so.6.5 (0x00007f6301fa2000)
	libcudart.so.6.5 => /usr/local/cuda-6.5/lib64/libcudart.so.6.5 (0x00007f6301d52000)
	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f63019b4000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f63015c3000)
	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f63013bf000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f63011a0000)
	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f6300f98000)
	libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f6300c0f000)
	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f63009f7000)
	/lib/ld-linux-x86-64.so.2 => /lib64/ld-linux-x86-64.so.2 (0x00007f63049c7000)
blackadder@LinuxMint:~/MEGA/Prime95$ ./CUDALucas-6.5 
bash: ./CUDALucas-6.5: No such file or directory

blackadder@LinuxMint:~/MEGA/Prime95$ file CUDALucas-6.5 
CUDALucas-6.5: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=a8b4728865a4f5a480dd218c33fd85728a4914c3, not stripped

I did however use a repo for an older Linux version: cuda-repo-ubuntu1404_6.5-14_amd64.deb. There are newer versions, but then I can't get to install CUDA 6.5

Code:

blackadder@LinuxMint:~$ sudo apt-get install cuda-6-5
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package cuda-6-5

Luis · 2019-01-16, 15:02

Same here.

ldd ./CUDALucas-2.05.1-CUDA5.5-linux-x86_64

Code:

linux-vdso.so.1 =>  (0x00007ffd7c5d4000)
    libcufft.so.5.5 => /usr/lib/x86_64-linux-gnu/libcufft.so.5.5 (0x00007f8319595000)
    libcudart.so.5.5 => /usr/lib/x86_64-linux-gnu/libcudart.so.5.5 (0x00007f8319348000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f8319042000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f8318c79000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f8318a75000)
    libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f831875f000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f8318541000)
    librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f8318339000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f8318121000)
      /lib/ld-linux-x86-64.so.2 => /lib64/ld-linux-x86-64.so.2 (0x00007f831e0b6000)

file CUDALucas-2.05.1-CUDA5.5-linux-x86_64

Code:

CUDALucas-2.05.1-CUDA5.5-linux-x86_64: ELF 64-bit LSB  executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=fca85cfd718374ae6867e076e646bc1917eabab6, not stripped

./CUDALucas-2.05.1-CUDA5.5-linux-x86_64

Code:

bash: ./CUDALucas-2.05.1-CUDA5.5-linux-x86_64: No such file or directory

How to fix?

henryzz · 2019-01-16, 15:42

Is the executable permission set?

kriesel · 2019-01-16, 15:50

I recommend using 2.06 not 2.05.1. Not all the bad-residue checks in 2.06 made it into 2.05.1.

Luis · 2019-01-17, 16:41

ls -l CUDALucas-2.05.1-CUDA5.5-linux-x86_64

Code:

-rwxr-xr-x 1 luis luis 609904 feb 12  2015 CUDALucas-2.05.1-CUDA5.5-linux-x86_64

2.06 is beta. I don't see binary files.

kriesel · 2019-01-17, 16:58

Quote:

Originally Posted by Luis

ls -l CUDALucas-2.05.1-CUDA5.5-linux-x86_64

Code:

-rwxr-xr-x 1 luis luis 609904 feb 12  2015 CUDALucas-2.05.1-CUDA5.5-linux-x86_64

2.06 is beta. I don't see binary files.

And mfakto's latest is 0.15pre6, and better than 0.14, also, just as CUDALucas 2.06 is better than 2.05.1. Both have been in constructive use for years. Don't linux users usually compile their own, on their linux flavor of choice?

nomead · 2019-01-17, 19:12

Quote:

Originally Posted by kriesel

Don't linux users usually compile their own, on their linux flavor of choice?

Yup, or at least I'm one of the people who do. The bonus is getting to compile it for the CUDA version installed and compute capability version(s) of the card(s) being used. Also fine tuning some options that might not be available in the configuration files. The only exception being small ARM boards. Can't be arsed to set up a cross compile environment, and anything even slightly bigger will take a while to compile on the target board.

But can't help with the original problem. The only place I've seen that is when trying to run 32-bit binaries on a 64-bit system without support for it installed, but now the binary is 64-bit, all the libraries are 64-bit... so clearly that shouldn't be a problem.

Luis · 2019-01-18, 10:00

Quote:

Originally Posted by kriesel

And mfakto's latest is 0.15pre6, and better than 0.14, also, just as CUDALucas 2.06 is better than 2.05.1. Both have been in constructive use for years. Don't linux users usually compile their own, on their linux flavor of choice?

I'm an unusual and lazy linux user. :P

I don't know compilation procedure by memory, I should read/understand how to do.
I would do it because I guess that error is caused by compilation on another machine.

Luis · 2019-01-18, 15:36

Quote:

Originally Posted by kriesel

CUDALucas 2.06 is better than 2.05.1

I did a snapshot here.

Makefile says

Code:

VERSION = 2.05.1

How to get 2.06 sourcecode?

2018-12-12, 16:50	#155
chris2be8 Sep 2009 2⁵×7×11 Posts	I'll try to help, but I don't run CUDALucas so I can't be sure I can fix it for you. First run echo $LD_LIBRARY_PATH which will say what it's set to now. On my system where I run CUDA I added the following to my .bashrc file: Code: # For CUDA export PATH=/usr/local/cuda-7.5/bin:$PATH export LD_LIBRARY_PATH=/usr/local/cuda-7.5/lib64:/usr/lib/nvidia-current/:$LD_LIBRARY_PATH Update the paths to wherever your programs are. You need to add the path to the directory libcufft.so.6.5 and libcudart.so.6.5 are in to LD_LIBRARY_PATH (the pathnames are separated by a :). Then log on again to make it pick up the updates and run echo $LD_LIBRARY_PATH again to make sure it worked. Chris

2019-01-17, 16:41	#161
Luis Oct 2014 Bari, Italy 3·13 Posts	ls -l CUDALucas-2.05.1-CUDA5.5-linux-x86_64 Code: -rwxr-xr-x 1 luis luis 609904 feb 12 2015 CUDALucas-2.05.1-CUDA5.5-linux-x86_64 2.06 is beta. I don't see binary files. Last fiddled with by Luis on 2019-01-17 at 16:42

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2019-01-16, 15:42	#159
henryzz Just call me Henry "David" Sep 2007 Liverpool (GMT/BST) 3·23·89 Posts	Is the executable permission set?

2019-01-16, 15:50	#160
kriesel "TF79LL86GIMPS96gpu17" Mar 2017 US midwest 7,823 Posts	I recommend using 2.06 not 2.05.1. Not all the bad-residue checks in 2.06 made it into 2.05.1.