Page History
June 6, 2017
Chuck:
- summer intern (utsab) working on sz absolute error compression
- working on photon conversion: with zwart and ruslan using det.photons()
- working on manifold embedding with hao-yuan for 2016 dataset (works for 2015 dataset)
- triggering options are time-of-flight and ROI/threshold on image (drifting background: need running average)
- hao-yuan looking at neural-nets for SPI hit-finding
clemens:
- working with cpo on data format inside DRP nodes
- can distribute at 3MHz on 4 core laptop
cpo
- looked at EPICS pvData with Murali
- ric and mark working on trigger and event distribution
silke
- focusing on lcls-1
May 23, 2017
mark
mikhail
chris
- went to hutches and played around with DAQ interface to enable event veto
- worked on quick-and-dirty background-subtraction/thresholding algorithm: numba: 2ms, c++: 6ms (not understood why c++ slower).
sioan
silke
chuck
clemens
May 16, 2017
mark
- getting open cluster working in lab2 drp node
mikhail
chris
- lab2 pgp loopback is running
- 0.5 Mpixel epix calibration is 30ms and peak-finding is about 60ms (although likely our algorithm can be sped up). doesn't bode well for 4MP epixM at 10kHz in 2020. looking into "quick and dirty" detector triggering algorithm: simple background subtraction and thresholding
sioan
- led's are counting on FPGA eval board
chuck
- working on SZ absolute error of +-30 doesn't seem to affect indexing
silke
May 9, 2017
clemens
- pgp in lab2
mark
- thinking about reusing astronomical package
mikhail
chris
- setting up test stand
- still understanding trigger vs. filter setting
silke
- distracted by turning things on
sioan
- moving from devel board to pgp card
- no progress on sxrk4816
chuck
- sfx: trying sz with 60 ADU
- spi: users like veto, binning, but not general lossy compression (e.g. sz)
- spi: data will be more sparse because of lower fluence (not true for sfx)
May 2, 2017
clemens:
- working on other stuff. need to pick out new project.
- handed off drp event distribution to mark
mark:
- working on drp event distribution
mikhail:
- working on other stuff (fiber diffraction)
sioan
- able to program image for xilinx eval board!
- still working on sxrk4816 SZ compression
- identified turner expt in oct for data reduction
silke
- will do determination of z distance of detector
- will see if beam centers work for tim analyses
- working on time tool calibration issues
chris
- understanding DAQ L3T code/control
Apr 25, 2017
sioan:
- has fpga hardware
- starting to use Herbst makefile
- sxrk4816 is on back burner (using absolute sz errors)
- continue to identify experiments where we can reduce
mikhail:
- working on fiber diffraction
yoon:
- finished indexing the 1% error (191k patterns) (vs 200K without the error). but might be missing a couple of runs which could explain difference.
- redo with absolute errors.
- wrapped up SPI wavelets. binning is better than wavelets.
chris:
- want to look at DAQ code for triggering
clemens:
- working on DRP event distribution
Apr 4, 2017
sioan:
- vivado hls: C-style programming done
- matlab is next
...
clemens:
- data in and out of pgp
Mar 28, 2017
sioan:
- still working on compiling hello-world
- still working on sxrk4816 with clemens
...
- explore the idea of keeping the data for a day
Mar 14, 2017
cpo:
- zhenglin results
- upcoming meetings with users
...
- beam centering: hough, ransac, scipy optimize 1-ring fitting
- canny uses soble filter
- looked at skbeam. canny works better.
- hough transform took optimizing
Mar 7, 2017
chuck:
- playing around with SZ. difficult because doesn't integrate into python.
- simulated SZ by adding 1% error
- sees common mode shift. surprising, not understood
- indexing rate is 98% similar. looks promising
...
- integrating silke's pyfai numbers from gpu onto his plots
- will work on legion
- next project: work on the infrastructure for handing out events to different cores
Feb 28, 2017
mikhail:
- looked at skbeam centering algorithm
- sz compression
...
- working with legion people on gpu-based two-threshold lag
Feb 21, 2017
sioan:
- working on spatial. good progress
...
- away at LBL xtallography workshop: pessimistic about drp
- unit-cell not known
- bad pixels, which change over time (good enough, but room for improvement in our dark runs)
- compare bad-pixel maps from super-users to dark-run results
- geometry
- python scaling problem work
- students look at pywavelets: zero-pads for performance reasons
Feb 14, 2017
Chuck:
- Tried SPI wavelet compression: 4x (on top of a 4x binned image)
- quantifying the error at goal: 3Angstrom resolution (currently 9nm)
...
sioan:
- running spatial builds
Feb 7, 2017
sioan:
possible users to contact:
...
- comparing python/C++: still working on it
- zmq/mpi/gasnet
- gasnet: 3 year old python bindings
- setup mtg with elliott/wonchan?
- talk with DAQ about DRP re-configuration
Jan 27, 2017
mikhail:
- henrik algorithm
- filipe maia algorithm
- running on gpus/knl
- evaluate compression package from argonne that amedeo will send out
...
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