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Author Topic: Installer v0.42 release notes  (Read 12500 times)

Offline Richard Haselgrove

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Installer v0.42 release notes
« on: 11 Aug 2014, 05:11:30 am »
Lunatics are pleased to announce the availability of the v0.42 installer in the Lunatics main download area and mirror sites.

Please take care you use the right installer (32/64 bit) for your system.

Should you have any questions or problems - ask! Post in this thread or open a new one.

New in this installer:
Updated CPU apps with better optimisation
(* but see note on service mode BOINC installations below)
Updated OpenCL applications for AMD/ATI GPUs
Updated OpenCL application for Astropulse on NVidia GPUs
Support (new) for integrated Intel iGPUs

How to use the installer:
For the CPU applications, you need to know what your CPU supports. Either check the Boinc startup messages or check with CPU-Z downloadable from http://www.cpuid.com
Tick or untick CPU AP and MB applications as desired. 
Tick ATI (OpenCL) AP or MB if/as desired.
Tick NVidia (OpenCL) AP or CUDA MB if/as desired.
Tick Intel (OpenCL) AP or MB if/as desired.
More details further down.

NB We use default values throughout the app_info.xml. If you have previously installed optimised applications and manually edited app_info.xml (e.g. <count> for multithreading GPUs, <flops>, <cmdline> for ATI) you WILL lose those edits on running the installer and have to redo them. You may wish to make a note of them. You will also lose all other manual edits to app_info.xml such as beta applications.

You are strongly recommended to use a version of BOINC which supports app_config.xml files. These can be used to manage the number of tasks running on each GPU more simply than by editing app_info.xml, and will NOT be removed by re-running this or subsequent installers.

Known issues - general:
The Astropulse applications deployed by this installer are for the current (August 2014) version 6 of Astropulse. They are NOT compatible with the forthcoming version 7 of Astropulse. A new installer will be released as soon as possible after the deployment of AP v7. The replacement installer will still contain apps for processing residual AP v6 tasks during the changeover.

* The updated AP v6 CPU applications cannot run on BOINC 7 installations running in service mode: this restriction will be removed for the new AP v7 release. This installer will identify the conflict, and offer the previous (r1797) AP v6 application as an interim solution. Lunatics apologises for this temporary limitation. BOINC v7 installations are also not able to run any GPU applications, and the installer will now bypass GPU application pages on machines which cannot run GPU applications because of the service mode restrictions.

The installer is supposed to shut down the BOINC client whilst leaving the Manager running - noticable from the red 'disconnected' dot in the tray. After finishing the BOINC client should restart and the red dot vanish when the Manager reconnects. This may take a few minutes. On some systems however this fails to work. Please ensure BOINC has restarted.

Advanced users only: If you know you are going to edit app_info.xml, it may be easier to shutdown and restart BOINC manually, so you can get the changes into app_info.xml before the restart.

Some users reported that installer v0.41 failed to assemble a complete app_info.xml file from the aistub files supplied with each application. We have switched to using a 'grep' application (supplied) called from a slightly modified 'aimergeg.cmd' script to help avoid this problem. The original aimerge script is also present for people who are used to using it.

CPU MB apps - AKv8c r2549

If you have any doubt at all about what instruction sets your CPU supports, download CPU-Z from http://www.cpuid.com/softwares/cpu-z.html We have now incorporated a 3rd party CPU feature detection tool into the installer. Unsupported applications will be greyed out, and the installer will pre-select recommended application versions for your CPU. The updated r2549 application supports a wider range of CPU types.

CPU AP v6 app - r2163

Updated from r1797 (except on BOINC 7 service mode installations)

NVidia GPU (CUDA) app - x41zc

For details please see the separate ReadMe_x41zc.txt.

Rule of thumb selection guide:
Cuda 2.3: PreFermi - NOT to be used on Fermi/Kepler/Maxwell
Cuda 3.2: mixed systems
Cuda 4.2: Fermi
Cuda 5.0: Kepler/Maxwell
If you have run stock and have established APR you can also pick the fastest app from there.

For compatible cards see http://developer.nvidia.com/cuda-gpus

Should run on all NVidia CUDA cards with at least 512MiB video RAM. Actual free memory required is in the region of 200-235MB, depending on driver, OS flavour and CUDA variant. The code will scale up if more memory is available. Running on a 256MiB card is just possible, but you will have to free up as much VRAM as possible, e.g. by disabling Aero.

Used video RAM can be checked with GPU-Z downloadable from http://www.techpowerup.com/downloads/2244/techpowerup-gpu-z-v0-7-1/ Watch closely on GPU-Z and in BOINC manager if the application finds enough memory.

Symptoms of insufficient memory are
- in BOINC manager: tasks start up and run a few seconds then go to 'waiting
  to run' and the next task tries to start
- on GPU-Z: the sensor for memory shows used VRAM ramping up and almost
  immediately dropping again.
Depending on BOINC version your tasks will either error out with 'too many exits' or get stuck in an infinite loop.

If you don't have enough memory, set BOINC to NNT, abort tasks and uninstall the CUDA application by rerunning the installer with CUDA MB UNticked. If in doubt ask for help on NC: http://setiathome.berkeley.edu/forum_forum.php?id=10

To multithread on Fermi/Kepler cards, find all instances of <count>1</count> in
app_info.xml and decrease to 0.5 or 0.3 to run two or three tasks in parallel. Again, if  you are uncertain of how to do this correctly, ask on the above mentioned forum. 'Your mileage may vary' - it depends on your specific system which count will give the highest throughput.

Full release notes and history in separate readme.

NVidia (OpenCL) AP v6 app - updated to r2399

please see separate ReadMe_AstroPulse_OpenCL_NV.txt for details.
Reserving one CPU core per GPU card will improve performance.

Warning - there are indications that the NVidia 340.52 driver (released 29 July 2014) may impair the performance of this application. Lunatics will investigate this situation and advise: keep an eye on the message boards.

ATI (OpenCL) MB app - updated to r2489

Please see separate ReadMe_MultiBeam_OpenCL_ATI.txt for details, especially on driver requirements.
Reserving one CPU core per GPU card will improve performance.

We offer the MB application in two different variants, depending on card:
plain - for most HD4xxx owners and those with HD5xxx, HD6xxx cards and
        HD7xxx cards who suffer from driver incompatibilities.
HD5 - for most if not all owners of HD5xxx, HD6xxx and HD7xxx GPUs.

ATI (OpenCL) AP v6 app - r2399
ATI (Brook) AP app - r1890

Please see separate ReadMe_AstroPulse_OpenCL_ATI.txt or ReadMe_AstroPulse_Brook.txt for details, especially on driver requirements.
Reserving one CPU core per GPU card will improve performance.

For cards without OpenCL support (from HD2xxxx on) use the 'hybrid' r1890 Astropulse application. NB this is a combined CPU/GPU application and will only use the GPU for some of the calculations, while doing the rest on a CPU core.
Minimum driver version Catalyst 9.x.

The Hybrid AP application uses about 80% of a CPU core and does only about 20% of the calculations on the GPU. Parameters have been choosen to reflect this usage. However present BOINC can not reserve '0.8' of a CPU core and therefore reserves none. This means your CPUs will be overcommitted and runtimes and DCF (if applicable) will suffer. You do increase the overall output though.

Please note that HD2xxx cards requiring Brook (Hybrid) applications will no longer be supported by Lunatics after the release of Astropulse v7.

Intel (OpenCL) applications for both MB and AP v6

These are offered by Lunatics for the first time. Please note the supported iGPU models, and observe the minimum OpenCL and driver versions, shown on the selection page. Intel CPUs offering plain "HD graphics" are NOT supported by these applications.

You MUST update your Intel driver if BOINC reports the OpenCL version as 1.1
The applications may appear to run without updating the driver, but the results will not be valid and you will have wasted your computing power.

Visit https://downloadcenter.intel.com/ if you require an updated graphics driver for your iGPU. Note that you will require a driver for a 3rd. or 4th. generation Intel 'core' CPU with the appropriately numbered HD or Iris graphics support.

Many people have reported problems getting Intel's automated update and installation tools to work, but their manual installation instructions (requiring the download of the '.zip' driver package) appear to work on systems which reject the automated tools. A copy of Intel's ReadMe file for driver installation will be placed in the Lunatics docs folder for reference if you select either of the iGPU applications.

This time the thanks go to Joe (Josef W. Segur) for the optimised CPU apps, to Raistmer (with additional input from Urs Echternacht) for OpenCL apps and to Jason (jason_gee) for CUDA apps.
Thanks guys. There would be no need for an optimised app installer if there weren't optimised apps in the first place!

We would also like to take this opportunity to thank our active alpha testers (in no particular order and apologies to anybody we've forgotten):
Claggy, arkayn and Mike.

The Lunatics Installer team AD MMXIV

Edit - inserted note about 'grep' based AIstub assembly, accidentally omitted from this version.
« Last Edit: 11 Aug 2014, 10:14:21 am by Richard Haselgrove »


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