LinX - A simple Linpack interface

[WaterFlex]

safan80
thanks for the info mate

[donmarkoni]

@orlywutlol
Maybe your CPU is throttling and you don't know it.
RealTemp is proven to be the most accurate, so if it says your CPU usage is falling, you bet it is.
If you could post your system specs and BIOS template, it would be helpful, but you probably should put in your board's thread, or better start a new thread, and not go of topic here.

[alpha754293]

Most of you know what Linpack is I guess. In case you don't, it's a benchmark designed to measure performance on Intel CPUs in GFlops. But it's also a very useful tool for checking the stability of a CPU.
Now back on topic. A short pretty long now while ago I wrote a small graphical front-end for it, named it LinX and hosted it on a great Russian overclockers' forum forums.overclockers.ru.

Changes in latest LinX v0.6.4:

- added an option to run tests for a specified period of time. Use the drop-down list to set minutes or times to run tests
- small UI redesign/enhancements
- graph windows now correctly save their positions on program close
- fixed a somewhat rare bug leading to false LinX errors when CPU usage was high
- added new command-line options, fixed found bugs in older ones (run LinX.exe -help to view the list of command-line options)
- added seconds to filenames to prevent overwriting

Complete changelog for all versions is in the archive.

Couple of screenshots:





Some main features:

› a simple and intuitive interface
› max available memory detection and an option to use all available memory
› both Intel and AMD CPU support (thanks Right from forums.overclockers.ru for that)
› both 32 and 64-bit Linpack support
› Intel HyperThreading support (Pentium 4, Atom, Corei7) and ability to override the number of testing threads
› Linpack can be started with different priorities
› elapsed, estimated and approximate finish time displaying
› ability to test for a specified period of time
› optional sound beep on error/successful pass
› settings for the last run are remembered
› visual indication of testing process to quickly determine possible system hang
› monitoring data import from Everest or Speedfan and ability to create graphs for core temperature, fan speed, vcore and +12V voltage
› screenshot and graph saving in PNG format
› tray icon
› command-line keys support to automate testing (run LinX.exe -help for full list)
› no additional redistributable packages needed
› no installation required (however, there is a version with installer too )

Note that I'm rather new to programming, so there may be some bugs in there. Should you find one, report it and I'll do my best to fix it.
And note that I'm Russian, so some mistakes in text may also be present.

Download links provided by Duh
Archives: LinX.7z or LinX.zip
Installer: LinX-setup.exe

Dropbox mirror
Archive: LinX.7z
Installer: LinX-setup.exe

Older versions
LinX 0.6.3: LinX.7z, LinX.zip
LinX 0.6.2: LinX.7z, LinX.zip
LinX 0.6.1: LinX.7z, LinX.zip

Just unpack the archive or run the installer and launch LinX.exe.
That's it, hope you'll like it. Should you decide to give it a try, please comment. Every feedback is appreciated.

Does this program use single or double precision?

Is there a way to disable SSE?

Is there a way to disable Intel MKL?

Is there a way to test it using AMD Core Math Libraries (ACML)?

Does this use OpenMP or MPI for parallel processing?

Can you give the option of running this just once (instead of a minimum 3 times)?


This is easier to use than the actual LINPACK/HPL though.

I managed to get LINPACK to compile using g77 ok, but it was saying that I was only getting like 460 (double precision) MFLOPS per core on an AMD Opteron 2220 SE (2.8 GHz, dual-core).

I haven't tried any of the other compilers yet, and I haven't tried enabling SSE.

I also haven't tried linking it with Intel MKL or AMD AMCL yet either.

HPL uses MPI, so I'll have to test that out too. (Especially with HP MPI, Intel MPI, MPICH2, and OpenMPI).

[slim142]

At this point you would be better using IBT 2.5

LinX hasnt been updated in a long time

[some_one]

Real Temp shows only 78% load but the task manager and core temp show 100% load on all cores.

Windows task manager shows a scheduling load not a CPU load.

[safan80]

At this point you would be better using IBT 2.5

LinX hasnt been updated in a long time

why do you say that? You can just download the latest linpack files from intel and replace them. LinX is just a gui for those files anyways and it works great.

[slim142]

Really?
I didnt know about that. Good to know that you can keep the libraries up to date.

Now, IBT is not that bad either. The UI is great too. Just wished Dualist was still here to keep on improving the program.

[sn0man]

why do you say that? You can just download the latest linpack files from intel and replace them. LinX is just a gui for those files anyways and it works great.

+1

Just watch for library updates.

[dMITIj]

why do you say that? You can just download the latest linpack files from intel and replace them. LinX is just a gui for those files anyways and it works great.

link and stuff?

[safan80]

link and stuff?

try page 30 the link is there.

[zalbard]

link and stuff?

Check the OP in the thread in my sig. I uploaded LinX with updated Linpack files a while ago.

[vodka3dg]

hi! sorry for the change of subject... i was wondering if there was any way to force a determined amount of memory usage in LinX.

i mean, just like in Prime95, where you just set the amount required and the program automatically frees up memory for you..

thanks

[Piospi]

when I run Linx is set in the configuration that was a high priority / or load (can not remember what exactly). Set in the necessary things about the "problem of size" and "memory". At the end push the "start" button, the timer turns on and kind of testing program. CPU usage does not even exist and I don't have this:


http://img233.imageshack.us/img233/6...2009192622.png

My OS: Windows 7 64 bit.

P.S. I use administrator privileges. Sorry for my english :]

[donmarkoni]

Try using ALL memory button. It is so short problem size you can't even see the load on CPU for the fraction of a second.

[egandt]

I had posted this question in the forum for the Asus Rampage III Extreme, which is the Motherboard I am using, but this seems like the correct place to ask, so I'll post here with some more data.

Having issues with my new Build, i7 980X, Rampage III Extreme, 12Gb of Gkill RAM. LinX uses 9280megs.

My problem is, with overclocking and stabilizing the system.

I've tried using the following: Prime95, LinX and Cinbench 11.5

Cinebench works always, (its quick)

Prime95 runs for hours (longest run was 9.5 hours)
Runs from 3333 all the way to 4300 without errors, after tuning

LinX, works something and yet not others, THIS IS THE PROBLEM
On some boot it runs at 81+Gflops, other times 51Gflops, this is regardless of the CPU/Memory speed, in fact at:
4200 with Memory at 1728MHZ, it does 81 on some reboots, when it does this LinX will run without issues for 20 runs, if after a reboot it is 51Gflops, then it normally dies with in 3 runs. This without change options only rebooting.

In both cases Prime95 runs without issues (for over an hour). Cinebench shows no change in performance when I run it no matter the speed of LinX. Nor does SiSoftware Sandra show any change in performance.

When it runs at 81Gflops temps may reach as high as 75c, when it runs at 51Gflops, they never exceed 70c, so even though it is at 100% CPU, there does seem to be less work being done.

So I'm confused if it is a LinX issue, a MB issue or what as I am at a loss to understand why LinX only works sometimes and then returns far better results then when it does not work. This is making stability impossible with LinX since having it fail means nothing if something else is wrong, which affects performance of its results by 30Gflops, but only for LinX.

ERIC

[SimpleTECH]

egandt, have you tried updating the Linpack library?

I made a link with the latest library included.

[safan80]

Is Dua|ist going to update this program anymore? It does get old asking if users are using the latest linpank with it.

[egandt]

Thanks the updated version helped fix the random changes.

ERIC

[wiak]

you trusty tech site has a mirror
http://techpowerup.com/downloads/1902/file.html

[zalbard]

Is Dua|ist going to update this program anymore? It does get old asking if users are using the latest linpank with it.

It's just a UI, so doesn't matter too much for the most part. Just keep updating the binaries like I do.

[dMITIj]

Check the OP in the thread in my sig. I uploaded LinX with updated Linpack files a while ago.

Thanks

[tistou77]

I have a problem with LinX, if I click on the button "All" to memory, I get an error "Stopped Unexpectedly (not enougth memory ?)...

Intel(R) LINPACK 64-bit data - LinX 0.6.4

Current date/time: Thu Nov 18 15:48:12 2010

CPU frequency: 3.038 GHz
Number of CPUs: 12
Number of threads: 12

Parameters are set to:

Number of tests : 1
Number of equations to solve (problem size) : 26832
Leading dimension of array : 26840
Number of trials to run : 10
Data alignment value (in Kbytes) : 4

No runs is allowed for C:\Divers\utilitaire\bench\linx_0.6.4\linpack_xeon 64.exe: not enough memory

Why?

and is it possible to have AIDA64 (replacing Everest) for monitoring?

thanks

[safan80]

It's just a UI, so doesn't matter too much for the most part. Just keep updating the binaries like I do.

Your missing the point. I know what binaries I use, but I don't know what binaries others are using and it gets old asking.

[Sylver123]

Hi guys.

As IntelBurnTest also seems to use Linpack, is it fully possible to update the Linpack library files in IntelBurnTest with the latest Intel ones the same way you can with LinX?

Thanks for responding.

Sylver123

[kup]

It is.