ci_hsc

ci_hsc provides scripts which use the LSST stack to perform single frame and coadd processing based on engineering test data from Hyper Suprime-Cam.

Obtaining test data

ci_hsc uses the the files in testdata_ci_hsc to run its tests. That package must be setup first, before running scons (see below).

Running the tests

Set up the package

Both testdata_ci_hsc both and ci_hsc must be setup in eups in order to run the tests in this package. One way to accomplish this is as follows:

$ cd PATH_TO_TESTDATA_CI_HSC
$ setup -r .
$ cd PATH_TO_CI_HSC
$ setup -kr .

Running the tests

Execute scons -jN, where N is the number of CPU cores to use. Note that running these tests can take a few hours, depending on the speed of your machine and the number of cores available.

This will create a butler repository at DATA/, ingest the raw data into HSC/raw/all, create a chained HSC/defaults collection for all of the input data, and write the output of the pipeline run to HSC/runs/ci_hsc. It will also run various checks of the data integrity of the processed output. The resulting repository in DATA/ will take up about 18GB.

Debugging HSC/runs/ci_hsc

If the run fails on a given task for the primary HSC/runs/ci_hsc run, you can rerun a specific task in your failed run with the following command (replacing taskLabelToRerun with the appropriate label from the DRP pipeline):

pipetask run -b DATA -j 1 -i HSC/runs/ci_hsc -o u/$USER/testing -p "${DRP_PIPE_DIR}/pipelines/HSC/DRP-ci_hsc.yaml#taskLabelToRerun" -d "skymap='discrete/ci_hsc' AND tract=0 AND patch=69"

This will pick up the outputs from everything that had been run prior to the task that failed and rerun the task with the output going to a new collection called u/$USER/testing.

After fixing any problems, the processing can be resumed with the following command (note the .. at the end of the task label):

pipetask run -b DATA -j NPROCESS -i HSC/runs/ci_hsc -o HSC/runs/ci_hsc -p "${DRP_PIPE_DIR}/pipelines/HSC/DRP-ci_hsc.yaml#taskLabelToRerun.." -d "skymap='discrete/ci_hsc' AND tract=0 AND patch=69"

Cleaning up

After each run of this test (and, in particular, before re-running it), the repository should be cleaned as follows:

$ scons --clean