Magnetism@home sends workunits and receives completed work reports. Magnetism@home Magnetism@home is a distributed computing project from Ukraine. 0.0 Magnetism@home has not been rated by anyone yet! Click here to rate it!

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Project description

Magnetism@home is a research project that uses Internet-connected computers to explore the equlibrium, metastable and transient magnetization patterns (first and foremost in nano-scale magnetic elements and their arrays, but later other systems may be considered). You can participate by downloading and running a free program on your computer.

Recent RSS entries

  • Data release 1.
    There are, actually, new and exciting things in the data ...

    Data release 1.

    There are, actually, new and exciting things in the data we have computed ! I have prepared a paper on this, which is currently being submitted for publication. This paper references as supplemental material the computed data, which I'm releasing now as Magnetism@home data release 1. More details are in the README file of the archive. The paper itself will be available later, as soon as it passes review.
    Created: Oct. 8, 2012, midnight (modified): Oct. 8, 2012, midnight

  • Metastable states.
    The last run with antialiasing had enough precision to resolve ...

    Metastable states.

    The last run with antialiasing had enough precision to resolve (at least some of) the metastable states. In particular, it allows to build the region of existence of metastable vortices: map_0.5, map_1.0, map_1.5. These three maps correspond to different comparison tolerances (in percents) in the algorithm for metastable state detection (the lower barriers are considered passable). As one can see, the dependence on the tolerance in most regions on the map is rather small to make it sound. This result is new, because the boundary does not completely fit any of the known partial results for the vortex stability line. Right now I'm working on analytical model to supplement this numerical map. There will be no new WUs for some time, probably. This is because in the light of the new developments in the underlying theory the program will have to be significantly modified, to cover much wider array of cases. (moreover, there are even further developments, which I'm readying for publication right now). But, even if there are no new WUs for a while, please consider the project alive. Numerical calculations constitute only a part of it, the smaller part.
    Created: Sept. 11, 2011, midnight (modified): Sept. 11, 2011, midnight

  • Server upgrade.
    I've just moved our WWW server (including BOINC) to a ...

    Server upgrade.

    I've just moved our WWW server (including BOINC) to a new virtual machine. It is possible that something was overlooked in the process. Please tell, if some features of the site do not work anymore. Otherwise I'm back from vacations and soon will start processing the results of our last run.
    Created: Aug. 29, 2010, midnight (modified): Aug. 29, 2010, midnight

  • Another batch, now with anti-aliasing.
    The previous run have reproduced the map of ground states ...

    Another batch, now with anti-aliasing.

    The previous run have reproduced the map of ground states in circular nano-cylinder in agreement with theory (which means that the energy is calculated correctly), but its precision was not enough to obtain the map of metastable states. This is because tracing of metastable states involves taking derivatives, which amplifies the errors. To reduce the jitter, associated with assignment of constant charges to finite elements, I have introduced a Monte-Carlo anti-aliasing procedure to calculate the average density of charges across each finite element. I hope this will be sufficient to reduce the jitter. We'll see. If not, there are other, more intensive methods.
    Created: May 13, 2010, midnight (modified): May 13, 2010, midnight

  • New batch of workunits.
    After finishing processing the previous batch I have launched a ...

    New batch of workunits.

    After finishing processing the previous batch I have launched a new one today. New workunits require about 330 Mb of RAM to complete, which should not be that much. A summary of the preliminary results of the previous run is here.
    Created: Nov. 24, 2008, midnight (modified): Nov. 24, 2008, midnight

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Supported platforms

  • linux-32-bitDistributed computing supported client platform. Linux (32-bit) Magnetism@home can run on Linux (32-bit).
  • windows-2000xpvista7-32-bitDistributed computing supported client platform. Windows 2000/XP/Vista/7 (32-bit) Magnetism@home can run on Windows 2000/XP/Vista/7 (32-bit).

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