MEEP - Revision history

127.0.0.1: /* Cloud computing: Amazon EC2 AMI -- A better term is no longer lacking. */

2016-03-10T05:24:47Z

Cloud computing: Amazon EC2 AMI -- A better term is no longer lacking.

← Older revision		Revision as of 22:24, 9 March 2016
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	== Cloud computing: Amazon EC2 AMI ==		== Cloud computing: Amazon EC2 AMI ==

	Due to the long computing times required to simulate the frustum until ~~"saturation" (for lack of~~ a ~~better term)~~, you may find it more convenient to run the simulation on Amazon EC2 than on your machine.		Due to the long computing times required to simulate the frustum until it has reached a steady state solution, you may find it more convenient to run the simulation on Amazon EC2 than on your machine.

	An Amazon machine image (AMI) with Meep pre-installed has been made available by @dumbo; the name is '''ubuntu-trusty-meep-emdrive''' and the AMI ID is '''ami-e5cbc9d5'''. The AMI is based on Ubuntu 14.04.2 (Trusty Tahr). Meep was installed from source using the following dependencies:		An Amazon machine image (AMI) with Meep pre-installed has been made available by @dumbo; the name is '''ubuntu-trusty-meep-emdrive''' and the AMI ID is '''ami-e5cbc9d5'''. The AMI is based on Ubuntu 14.04.2 (Trusty Tahr). Meep was installed from source using the following dependencies:

R.W. Keyes: performance statistics: round and decimate times, to allow easier comparison.

2015-12-19T20:35:05Z

performance statistics: round and decimate times, to allow easier comparison.

← Older revision		Revision as of 13:35, 19 December 2015
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	server 'pollux': Compaq Elite 8300, Intel i5-3470 @ 3.2 Ghz, 24GB DDR3-1600, Debian 8.1, utilizing NSF-1701.ctl as a reference configuration:		server 'pollux': Compaq Elite 8300, Intel i5-3470 @ 3.2 Ghz, 24GB DDR3-1600, Debian 8.1, utilizing NSF-1701.ctl as a reference configuration:
	* one processor, non-mpi version: 1:15:07		* one processor, non-mpi version: 75 minutes (1:15:07)
	* one processor, mpi: 1:12:12		* one processor, mpi: 72 minutes (1:12:12)
	* four processors: 49:22		* four processors: 50 minutes (49:22)
	* two simultaneous runs, each using two processors: 1:39:22		* two simultaneous runs, each using two processors: 100 minutes (1:39:22)

	TBD: add more specs, make a nice table		TBD: add more specs, make a nice table

127.0.0.1: /* Change of shape */

2015-12-19T07:09:26Z

Change of shape

← Older revision		Revision as of 00:09, 19 December 2015
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	** Exponential		** Exponential
	** Hyperbolic		** Hyperbolic
			** Tractrix
	** Hexagonal section		** Hexagonal section
	** Square section		** Square section

Aero: /* Virtualization: Virtualbox image */

2015-12-19T05:35:29Z

Virtualization: Virtualbox image

← Older revision		Revision as of 22:35, 18 December 2015
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	Note: Meep and ancillary codes were compiled from the latest source, as of July, 2015.		Note: Meep and ancillary codes were compiled from the latest source, as of July, 2015.

	Note: Most important - Go to the following listed Google drive page, then read the instructions.		Note: Most important - Go to the following listed Google drive page, then read the instructions.

	Note: Using a virtual machine running Meep installed as directed, expect about 3% overhead compared to the same computer running Meep installed on bare metal.		Note: Using a virtual machine running Meep installed as directed, expect about 3% overhead compared to the same computer running Meep installed on bare metal.

	Note: This overhead is also negligible compared to the overhead of a generic pre-compiled download package.		Note: This overhead is also negligible compared to the overhead of a generic pre-compiled download package.

	Note: some HP BIOSES have a glitch, When You ENABLE VT-X/AMD-V, You DISABLE it, so do try both ways if necessary.		Note: some HP BIOSES have a glitch, When You ENABLE VT-X/AMD-V, You DISABLE it, so do try both ways if necessary.

Aero: /* Virtualization: Virtualbox image */

2015-12-19T05:34:12Z

Virtualization: Virtualbox image

← Older revision		Revision as of 22:34, 18 December 2015
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	== Virtualization: Virtualbox image ==		== Virtualization: Virtualbox image ==

	TBD: Describe here where to find a Virtualbox pre-build image.		TBD: Describe here where to find a Virtualbox pre-build image.
			One pre-built Meep image for VBox was provided by Meeper, Quixote who posts on NSF.

	A Virtualbox image will allow running Meep using the same setup under Linux, Windows, Mac, Solaris		A Virtualbox image will allow running Meep using the same setup under Linux, Windows, Mac, Solaris
	The overhead of a Virtualbox is negligible compared to the benefits (i.e. ease of installation).		The overhead of a Virtualbox is negligible compared to the benefits (i.e. ease of installation).

			Quixote's VBox Meep install is available here, first some notes:

			Note: Meep and ancillary codes were compiled from the latest source, as of July, 2015.
			Note: Most important - Go to the following listed Google drive page, then read the instructions.
			Note: Using a virtual machine running Meep installed as directed, expect about 3% overhead compared to the same computer running Meep installed on bare metal.
			Note: This overhead is also negligible compared to the overhead of a generic pre-compiled download package.
			Note: some HP BIOSES have a glitch, When You ENABLE VT-X/AMD-V, You DISABLE it, so do try both ways if necessary.

			https://drive.google.com/folderview?id=0B91RvuTQIsPkfkFvdGlVelRRX2xwTXVlTHB4LWU2b1FEUlVPUDQtVEJxcHJlNC1LYzB3bU0&usp=drive_web

	== Emulation: Bochs image ==		== Emulation: Bochs image ==

R.W. Keyes: add runtime stats for 'pollux' server

2015-12-19T02:14:12Z

add runtime stats for 'pollux' server

← Older revision		Revision as of 19:14, 18 December 2015
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	= Runtime & performance =		= Runtime & performance =

	~~Meep can be run on more than one processor~~. ~~The software package for this is available for~~ Debian~~/Ubuntu~~ as ~~"meep~~-mpi~~'. Utilizing more than~~ one processor ~~will speed computation~~, ~~but not in a linear fashion~~, ~~i.e. running on four~~ processors ~~will not complete in a quarter of the time. A 25% decrease in execution time was noted by one user.~~		server 'pollux': Compaq Elite 8300, Intel i5-3470 @ 3.2 Ghz, 24GB DDR3-1600, Debian 8.1, utilizing NSF-1701.ctl as a reference configuration:
			* one processor, non-mpi version: 1:15:07
			* one processor, mpi: 1:12:12
			* four processors: 49:22
			* two simultaneous runs, each using two processors: 1:39:22

	TBD: ~~Add~~ a table ~~with reported run times.~~		TBD: add more specs, make a nice table
	Currently: count on more than one hour to run the reference .ctl file on a "normal" computer.		Currently: count on more than one hour to run the reference .ctl file on a "normal" computer.

	= References =		= References =
	<references/>		<references/>

R.W. Keyes: add mpi install info

2015-12-19T02:02:27Z

add mpi install info

← Older revision		Revision as of 19:02, 18 December 2015
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	<pre>		<pre>
	apt-get install meep h5utils		apt-get install meep h5utils
			</pre>
			or, for the multi-processor version (potential performance improvement, see Runtime & Performance section, below)
			<pre>
			apt-get install meep-mpi h5utils
	</pre>		</pre>

R.W. Keyes at 01:03, 19 December 2015

2015-12-19T01:03:47Z

← Older revision		Revision as of 18:03, 18 December 2015
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	= Runtime & performance =		= Runtime & performance =

			Meep can be run on more than one processor. The software package for this is available for Debian/Ubuntu as "meep-mpi'. Utilizing more than one processor will speed computation, but not in a linear fashion, i.e. running on four processors will not complete in a quarter of the time. A 25% decrease in execution time was noted by one user.

	TBD: Add a table with reported run times.		TBD: Add a table with reported run times.

127.0.0.1: /* Converting Meep csv to an image with contour and scale */

2015-08-18T20:01:12Z

Converting Meep csv to an image with contour and scale

← Older revision		Revision as of 13:01, 18 August 2015
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	http://i.imgur.com/L30JtI4.png		http://i.imgur.com/L30JtI4.png

	Note: When I have a bit of time, I'll update this script to read directly from the HDF5 file, alleviating the need for the .csv; I'll also create a .mp4 automatically from the HDF5 data.		Note: When I have a bit of time, I'll update this script to read directly from the HDF5 file, alleviating the need for the intermediary .csv. This will both be faster and ensure that data is read as close as possible from the source. I'll also create a .mp4 automatically from the HDF5 data.

	== Color maps ==		== Color maps ==

127.0.0.1: /* Converting Meep csv to an image with contour and scale */

2015-08-18T19:59:38Z

Converting Meep csv to an image with contour and scale

← Older revision		Revision as of 12:59, 18 August 2015
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	Result:		Result:

	http://imgur.com/L30JtI4		http://i.imgur.com/L30JtI4.png

	Note: When I have a bit of time, I'll update this script to read directly from the HDF5 file, alleviating the need for the .csv; I'll also create a .mp4 automatically from the HDF5 data.		Note: When I have a bit of time, I'll update this script to read directly from the HDF5 file, alleviating the need for the .csv; I'll also create a .mp4 automatically from the HDF5 data.