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Possible Computer Set-up Configurations » History » Version 6

Amber Herold, 04/28/2010 10:38 AM

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h1. Possible Computer Set-up Configurations
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Computer(s) used for the whole Leginon system need to support five functions:
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#  TEM/Camera control and data output (by python-side packages of Leginon
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system)
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 *Note:* The computer attached to the microscope/camera is used for this function. Therefore, it is on a Windows computer.
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#  General Leginon operation such as target selection and image processing (processing
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server of Leginon system)
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#  Image data storage.
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#  Other meta-data storage through MySQL database (by database server of Leginon
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system)
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#  Web server (using PHP-side of Leginon system).
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 *Important:* The MRC module that is used to load mrc formatted files to the web pages is not compiled on Windows. Therefore, this function must be on a linux box unless you don't need to see the images.
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The five functions can be distributed to five different computers on a network or all on
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one single computer. However, since the latter minimal setup requires the use of the computer
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attached to the microscope for all functions, it is not advisable.
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Processing server of Leginion is a multi-platform software, meaning it can run on both
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Microsoft Windows and Linux. It is also inherently designed to utilize distributed systems on
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a network. MySQL used in the database server is also supported by multiple platforms. This is
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not true for the Web server because the custom MRC module used in the web viewer only compiles
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on linux machines. Therefore, one of the computer not part of the microscope must be a linux.
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The following examples show several arrangements that take advantage of distributed system.
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Other combinations are possible, but will basically be variations on one of the following
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themes.
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h2.  A: 1 Windows computer (attached to the Microscope) & 1 Linux computer (for all
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other functions, separate from the Microscope) (Good for single user and small-scale
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acquisition)
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*  Install the latest processing server side of Leginon release (and supporting
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packages) on the Windows computer controlling the microscope and on the Linux computer
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which is to run Leginon image acquisition and processing.
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*  Install the additional modules needed for CCD camera and film interaction on the
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Windows computer controlling the microscope.
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*  Install MySQL, PHP, the Apache Web Server, and dbem tools only on the Linux
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computer that will perform these functions, (i.e. NOT the computer controlling the
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microscope).
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h2.  B: 1 Windows computer (attached to the Microscope) & 4 Linux computers (one for
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each function) (Good for multiple microsopes, users and large-scale acquisition)
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This is the set-up at NRAMM. It has the processing server side of Leginon installed on
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the Windows computer attached to the microscope and on the Linux computer that is used for
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running Leginon. A second Linux machine is dedicated to the database while the web-based
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viewer is hosted by another server.
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*  Install the python-side Leginon (and supporting packages) on the Windows computer
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controlling the microscope and on the Linux computer that is to run Leginon. You can
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make the latter installation accessable to any numbers of linux computers on your
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network.
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*  Install MySQL, PHP, the Apache Web Server, and dbem tools on the second Linux
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computer that will serve as the database/web server/PHP host.
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*  The computer hosting the data storage should be accessable by all linux
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boxes.
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h2.  C: 1 Windows computer (attached to the Microscope), 1 Windows computer running python-
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and MySQL-side functions and 1 Linux computer as web server (Has been applied
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successfully)
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The data storage may be on one of these computers that is accessable by other
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computers.
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[[What is in this Chapter|< What is in this Chapter]] | [[Ports used by Leginon|Ports used by Leginon >]]
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