chroma - Chroma is a high performance optical photon simulation for particle physics detectors

Age	Commit message (Collapse)	Author
2011-08-10	Set the GEANT4 and CUDA RNG seeds using current time and process ID if not ↵	Stan Seibert
	set on command line.
2011-08-10	Use WCSim properties for water with the lbne detector	Stan Seibert

2011-08-10	Fix misuse of Material.set(), so now wavelengths and values of material	Stan Seibert
	properties are not transposed.
2011-08-10	Using gzip compression level 1, the BVH at 10 bit is 7x smaller. Adds	Stan Seibert
	10 seconds to cache load time if the BVH file is in the memory cache, otherwise this is faster if the BVH file must be read fresh from disk.
2011-08-10	Rename chroma.io to chroma.fileio to avoid collision with Python package ↵	Stan Seibert
	named io
2011-08-10	merge heads	Anthony LaTorre

2011-08-10	add the ability to cache a geometry along with its bounding volume ↵	Anthony LaTorre
	hierarchy. cached files are stored in $HOME/.chroma. fixed the timeit() decorator so that the decorated function is still able to pass back a return value.
2011-08-09	Automatically detect kernprof and profile main() in sim.py. Also ↵	Stan Seibert
	synchronize CUDA calls.
2011-08-09	The --use-fast-math gives the simulation another 25% speed boost.	Stan Seibert

2011-08-09	Autodetect presence of Space Navigator rather than require an option.	Stan Seibert

2011-08-09	Raise exception if unable to spnav_x11_open()	Stan Seibert

2011-08-09	Bug fix that caused sim.py to only record hits on the first 3 PMTs	Stan Seibert

2011-08-09	fix variable name in GPU.color_solids()	Anthony LaTorre

2011-08-09	merge heads	Anthony LaTorre

2011-08-09	switch to indexing child nodes by start and stop indices instead of start ↵	Anthony LaTorre
	and length; this reduces a bit of arithmetic when traversing the bounding volume hierarchy and makes the code in Geometry.build() more concise. add an untested cuda kernel to interleave the bits in three uint64 arrays.
2011-08-09	Put number of detected photons into charge value for channel.	Stan Seibert

2011-08-09	Store a photon history for each hit channel. If multiple photons hit the	Stan Seibert
	same channel, their history bits are OR'ed together.
2011-08-09	Update camera to use SpaceNav over X11 protocol. Now events pass through ↵	Stan Seibert
	pygame loop.
2011-08-09	Update spnav ctypes wrapper to support X11-based communication.	Stan Seibert

2011-08-08	propagate() takes an array of photon offsets and a range of	Stan Seibert
	offsets to load. Now events with more photons than RNG states can be propagated through multiple kernel calls. Also lays the groundwork for consolidating photons between steps to reduce the amount of propagation work required.
2011-08-08	Record generated particle information in data structure	Stan Seibert

2011-08-08	merge heads	Anthony LaTorre

2011-08-08	speedup Geometry.build()	Anthony LaTorre

2011-08-08	Oops. The generator is a process, not a thread.	Stan Seibert

2011-08-08	Merge Tony's changes.	Stan Seibert

2011-08-08	Modify data structure to hold photon start and stop vertices separately.	Stan Seibert
	Add --save-photon-start and --save-photon-stop options to sim.py to save these vertices. Otherwise, only hit information is recorded.
2011-08-08	toggle fullscreen mode with f11 key. use matplotlib colors maps defined in ↵	Anthony LaTorre
	matplotlib.cm.
2011-08-08	Switch sim.py to spawn a separate process for GEANT4 and start it generating	Stan Seibert
	photons while the detector geometry is being built.
2011-08-08	merge heads	Anthony LaTorre

2011-08-08	add a simple event viewer. view events by running ./camera.py ↵	Anthony LaTorre
	<detector_name> -i <name_of_io_file>.
2011-08-08	Ignore root files and .lprof files produces by kernprof.	Stan Seibert

2011-08-08	Bug fixes when retrieving and rerunning photon lists through propagate.	Stan Seibert

2011-08-05	Cut off the index of refraction for water below 260 nm, which can't	Stan Seibert
	be observed anyway. Speed increase of 20% in full size LBNE.
2011-08-05	Run a short dummy GEANT4 event to force it to load the tables before	Stan Seibert
	the timer starts on the real events.
2011-08-05	merge heads	Anthony LaTorre

2011-08-05	update bounding box construction for nodes to determine each bound in a ↵	Anthony LaTorre
	single call by calling np.min() and np.max() along an axis
2011-08-05	Fix typo in setting direction of particle from sim.py command line.	Stan Seibert

2011-08-05	Remove the unused load() function from Geometry class.	Stan Seibert

2011-08-05	Tony discovered that Inf is not a good value for a scattering length. :)	Stan Seibert

2011-08-05	merge with tony	Stan Seibert

2011-08-05	Warn user if for some reason the default BVH quantization is used because	Stan Seibert
	they didn't build the geometry before loading it on the GPU.
2011-08-05	--spnav option to camera.py enables camera control with a	Stan Seibert
	locally-attached Space Navigator 3D mouse. Assumes you have the open source spacenavd and libspnav installed. (Both included in Ubuntu now.)
2011-08-05	merge heads	Anthony LaTorre

2011-08-05	speedup bounding volume construction of leaf nodes by taking the min and max ↵	Anthony LaTorre
	of ungrouped instead of grouped vertices from a mesh
2011-08-05	add a pi0 decay generator	Anthony LaTorre

2011-08-04	ctypes module for using libspnav from python	Stan Seibert

2011-08-04	First attempt at a simulation program using Chroma.	Stan Seibert
	Loads a geometry specified on the command line, uses GEANT4 to create initial photon vertices, propagates with Chroma, then writes the DAQ-level hit information out to a ROOT file.
2011-08-04	A rootlogon.C file to load the Event dictionary when running root	Stan Seibert
	inside the Chroma directory. Put this in your home directory or other work directory to access Chroma ROOT files.
2011-08-04	Import the fill_event() method from ROOT into the root.py namespace.	Stan Seibert

2011-08-04	Use the clear() method on Event to reset for filling.	Stan Seibert