You are not logged in.
- Topics: Active | Unanswered
#351 Re: Hardware & System Configuration » [SOLVED] Configuring CUDA support » 2018-08-27 08:09:49
Hello,
I've found that the CUDA programs I'm using only work if complied with clang instead of clang-3.8. Which is surprising because they are the same program:
chris@rigel:~$ which clang
/usr/bin/clang
chris@rigel:~$ which clang-3.8
/usr/bin/clang-3.8
chris@rigel:~$ ls -l /usr/bin/clang /usr/bin/clang-3.8
lrwxrwxrwx 1 root root 25 Apr 18 2017 /usr/bin/clang -> ../lib/llvm-3.8/bin/clang
lrwxrwxrwx 1 root root 25 Jun 2 2017 /usr/bin/clang-3.8 -> ../lib/llvm-3.8/bin/clangComparing two test cases (test4 fails, test3 works):
chris@rigel:~/msieve-svn1022.test4/trunk/cub$ diff Makefile ~/msieve-svn1022.test3/trunk/cub/Makefile
20c20
< -ccbin clang-3.8 -Xcompiler -fPIC -Xcompiler -fvisibility=hidden
---
> -ccbin clang -Xcompiler -fPIC -Xcompiler -fvisibility=hiddenchris@rigel:~/msieve-svn1022.test4/trunk/cub$ ldd sort_engine.so
linux-vdso.so.1 (0x00007ffc90ffe000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fa9cf8d2000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fa9cf6b5000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fa9cf4b1000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fa9cf29a000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fa9ceefb000)
/lib64/ld-linux-x86-64.so.2 (0x00007fa9cfe30000)chris@rigel:~/msieve-svn1022.test3/trunk/cub$ ldd sort_engine.so
linux-vdso.so.1 (0x00007ffd177ef000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f47b6618000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f47b63fb000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f47b61f7000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f47b5e75000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f47b5b71000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f47b595a000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f47b55bb000)
/lib64/ld-linux-x86-64.so.2 (0x00007f47b6b76000)The error message is:
cannot load library '/home/chris/msieve-svn1022.cuda/trunk/cub/sort_engine.so': /home/chris/msieve-svn1022.cuda/trunk/cub/sort_engine.so: undefined symbol: _ZNSt8ios_base4InitD1EvSo why does compiling with clang-3.8 produce different output from compiling with clang?
Chris
#352 Re: Desktop and Multimedia » In search of a privacy oriented browser » 2018-08-24 16:04:37
I've tested NetSurf, it has the same flaw as Konqueror in that it doesn't cache web pages you visit. So if you go back a page it re-fetches it, which is slow and loses your place on the page. Especially if you search for something in your favourite search engine, click one hit to read it, then go back the search is re-run.
In Konqueror I've taken to right-clicking and selecting open in new window so I just need to close the window to go back quickly. But that's a clumsy way to do it.
Firefox at least has a cache. But needs a lot of work and add-ons to make it respect privacy and security (don't trust javascript from arbitrary sites, don't leak what I'm doing to Mozilla, etc).
Chris
#353 Re: Hardware & System Configuration » Microcode to fight Spectre and Meltdown cpu flaws » 2018-08-24 15:52:39
The only really effective counter to Spectre is not to allow any untrustworthy code to run on your system. Or assume that any code running on it can read (but not update) everything in memory on it. There is no CPU on the market now where you can guarantee there is no exploitable side channel that would leak memory contents.
Chris
#354 Re: Desktop and Multimedia » In search of a privacy oriented browser » 2018-08-21 12:52:49
I've searched Synaptic package manager for web browsers and found:
chromium - web browser
conkeror - keyboard focused web browser with Emacs look and feel
dillo - Small and fast web browser
firefox-esr - Mozilla Firefox web browser - Extended Support Release (ESR) <--- installed on my system
hv3 - Lightweight web browser
iceweasel - Web browser based on Firefox - Transitional package
konqueror - advanced file manager, web browser and document viewer <--- I'm using this to make this post
links2 - Web browser running in both graphics and text mode
luakit - fast and small web browser extensible by Lua
midori - fast, lightweight graphical web browser
netsurf - small web browser with CSS support - transitional package
qupzilla - lightweight web browser based on libqtwebkit
surf2 - Simple web browser by suckless community. Version 2.
xombrero - minimalist web browser
And that's ignoring text based browsers.
So I'm a bit spoilt for choice looking for a privacy oriented browser. Which would be worth considering? Or should I ask which are not worth considering for privacy?
Chris
#355 Re: Hardware & System Configuration » [SOLVED] Configuring CUDA support » 2018-08-17 16:54:18
I've managed to get gmp-ecm GPU support working by recompiling it all with clang. See http://mersenneforum.org/showthread.php?t=23561 post 10.
So this issue is solved. How do I set the topic to say that?
Chris
#356 Re: Hardware & System Configuration » [SOLVED] Configuring CUDA support » 2018-08-15 17:06:44
Upgrading the OS from 4.9.0-6-amd64 to 4.9.0-7-amd64 fixed the driver problems. Now nvidia-smi works OK.
Testing nvcc I found it won't work with gcc 6.3.0. But it will work with clang 3.8 (and probably 3.9 or 4.0).
Now all I need to do is to get the apps I want to run under CUDA to work.
Chris
#357 Re: Hardware & System Configuration » Nvidia warning at boot » 2018-08-15 07:45:00
Thank you. The clue was you are running 4.9.0-7-amd64 while I was running 4.9.0-6-amd64. After apt-get update and apt-get dist-upgrade I get
$ nvidia-smi
Wed Aug 15 08:34:48 2018
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 384.130 Driver Version: 384.130 |
|-------------------------------+----------------------+----------------------+
| 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 460 Off | 00000000:01:00.0 N/A | N/A |
| 40% 39C P3 N/A / N/A | 89MiB / 963MiB | N/A Default |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 Not Supported |
+-----------------------------------------------------------------------------+Which is what I should get.
Chris
#358 Re: Hardware & System Configuration » [SOLVED] Configuring CUDA support » 2018-08-14 15:53:34
Hello,
Has anyone managed to get CUDA working on Devuan? If I can't get it working I'll reluctantly have to switch to another Linux distribution.
Chris
#359 Re: Hardware & System Configuration » Nvidia warning at boot » 2018-08-12 15:59:34
Could anyone running the nvidia driver without problems (either on ascii or an earlier release) please run the following commands (they don't need to be run as root) and post the output:
dpkg-query --search nvidia-current-drm
dpkg-query --search nvidia-current-uvm
dpkg-query --search nvidia-current-modeset
That should tell us what package provides them.
Chris
#360 Hardware & System Configuration » [SOLVED] Configuring CUDA support » 2018-08-11 14:13:11
- chris2be8
- Replies: 6
Hello,
I'm trying to get CUDA working on a system running Devuan. The GPU should support it:
$ nvidia-detect
Detected NVIDIA GPUs:
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF104 [GeForce GTX 460] [10de:0e22] (rev a1)
Checking card: NVIDIA Corporation GF104 [GeForce GTX 460] (rev a1)
Your card is supported by all driver versions.
It is recommended to install the
nvidia-driver
package.nvidia-driver version 384.130-1 is installed.
But something seems to be missing:
# nvidia-smi
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.When rebooting the system I got messages about nvidia-current-modeset and nvidia-current-drm not being in /lib/modules/4.9.0-6-amd64 (I had to pause the boot with control-S, write them down, then control-Q to continue the boot). Similar messages come from:
# modprobe nvidia
modprobe: FATAL: Module nvidia-current not found in directory /lib/modules/4.9.0-6-amd64
modprobe: ERROR: ../libkmod/libkmod-module.c:977 command_do() Error running install command for nvidia
modprobe: ERROR: could not insert 'nvidia': Operation not permittedWhat packages provide nvidia-current-modeset and nvidia-current-drm?
Chris
Board footer
