Downstream sync after the restructure (2026-10-05)

Which revision of each repository goes with the restructured quantem.gpu, and how other code moves to the new import paths. Each synced commit is on its repository’s main.

The synced set

Repository	Synced commit	How it pins quantem.gpu
quantem.gpu	f9185fb4 (the public history starts here)	release as tag gpu-v0.0.1rc13 (the release workflow stamps the version from the tag)
quantem.widget	main after the rc13 pin	quantem.gpu[movie]>=0.0.1rc13
quantem.live	main after the rc13 pin	quantem.gpu>=0.0.1rc13 (pyproject and both environment files)
Live4DSTEM	b6f2c30	Package.swift revision f9185fb4 (Package.resolved originHash updated)
Live4DSTEM-linux	a792926	Package.swift revision and linux/pyproject.toml git pin f9185fb4
quantem.thick	7044371	imports quantem.gpu.io.convert (unpinned)
denoise	main after the rc13 pin	fourdstem = ["quantem.gpu>=0.0.1rc13", ...]

The Python pins resolve to the gpu-v0.0.1rc13 release on TestPyPI, which declares torch; the Swift and Linux pins name f9185fb4. An editable environment must move quantem.gpu, quantem.widget, quantem.live, quantem.thick and denoise together: the callers import modules that only the restructured quantem.gpu has.

Behaviour changes that reach callers

• io.load on CUDA and MPS returns ANS-encoded acquisitions; bounded views come from loaded.read(scan_region=..., detector_region=...), products from detector.prepare(loaded).

• SSB automatic detector sampling is semiangle / disk-edge radius (it was twice that); fits that relied on the automatic value change. See maintainer/2026-10-05-ssb-detector-sampling.md.

• Mean diffraction patterns are the exact total divided once in float64; frame sums and maxima of integer counts are exact uint64 on every backend.

• The retired .ans snapshot format is gone everywhere; .qem is the saved encoded format.

• The WebGPU .qem reader is RansResidentSet.loadQemFile / loadQemFiles.

Other repositories that import quantem.gpu

myptycho, quantem.live-localtilt, amorphoscopy-diffraction and 2026-tilt-aberration-ssb import modules that moved or were deleted. The table below maps every module of quantem.gpu at 3a8abad6 whose names moved, to where its public names live now (generated from the two source trees; “deleted” means none of its public names remain).

Old module (3a8abad6)	Now	Note
quantem.gpu._compact	quantem.gpu.resident.cuda.paired	3 of 4 names deleted
quantem.gpu._compact.groups	deleted	2 of 2 names deleted
quantem.gpu._compact.interaction	quantem.gpu.detector.cuda.streamed_series
quantem.gpu._compact.layout	deleted	7 of 7 names deleted
quantem.gpu._compact.load	quantem.gpu.io.load	2 of 3 names deleted
quantem.gpu._compact.mask_plan	quantem.gpu.detector.cuda.mask_plan
quantem.gpu._compact.metadata	deleted	1 of 1 names deleted
quantem.gpu._compact.paired	quantem.gpu.resident.cuda.paired, quantem.gpu.detector.cuda.paired_series, quantem.gpu.detector.cuda.dense	1 of 16 names deleted
quantem.gpu._compact.planner	deleted	1 of 1 names deleted
quantem.gpu._compact.source	deleted	2 of 2 names deleted
quantem.gpu._compact.streamed	quantem.gpu.resident.cuda.counts, quantem.gpu.formats.qem.snapshot, quantem.gpu.detector.cuda.dense
quantem.gpu._cuda_libraries	deleted	1 of 1 names deleted
quantem.gpu.detector.backends	deleted
quantem.gpu.detector.backends.bounded	quantem.gpu.detector.bounded
quantem.gpu.detector.backends.counts	quantem.gpu.detector.counts	1 of 2 names deleted
quantem.gpu.detector.backends.cuda	deleted
quantem.gpu.detector.backends.cuda.kernels	deleted	19 of 19 names deleted
quantem.gpu.detector.backends.cuda.probe	quantem.gpu.detector.cuda.probe
quantem.gpu.detector.backends.cuda.series	quantem.gpu.detector.cuda.series
quantem.gpu.detector.backends.dispatch	quantem.gpu.detector.cuda.dense, quantem.gpu.detector.mps.dense, quantem.gpu.detector.tensors	2 of 5 names deleted
quantem.gpu.detector.backends.float_ans	quantem.gpu.detector.float_ans
quantem.gpu.detector.backends.mps	deleted
quantem.gpu.detector.backends.mps.ans_series	deleted	1 of 1 names deleted
quantem.gpu.detector.backends.mps.kernels	quantem.gpu.resident.mps.frames, quantem.gpu.resident.mps.virtual_image	1 of 4 names deleted
quantem.gpu.detector.backends.packed	deleted	2 of 2 names deleted
quantem.gpu.detector.backends.protocol	deleted	3 of 3 names deleted
quantem.gpu.detector.backends.support	deleted	3 of 3 names deleted
quantem.gpu.detector.backends.webgpu	deleted
quantem.gpu.detector.compute	deleted
quantem.gpu.detector.compute.backends	deleted
quantem.gpu.detector.compute.cuda	deleted
quantem.gpu.detector.compute.cuda.kernels	deleted
quantem.gpu.detector.compute.cuda.probe	deleted
quantem.gpu.detector.compute.mps	deleted
quantem.gpu.detector.compute.mps.kernels	deleted
quantem.gpu.detector.compute.packed	deleted
quantem.gpu.detector.compute.protocol	deleted
quantem.gpu.detector.compute.support	deleted
quantem.gpu.detector.compute.webgpu	deleted
quantem.gpu.detector.workflow	quantem.gpu.detector.workflow, quantem.gpu.detector.session
quantem.gpu.device._cupy	quantem.gpu.device.cuda_runtime
quantem.gpu.device.backend	quantem.gpu.device.select
quantem.gpu.display.backends	deleted
quantem.gpu.display.backends.cpu	quantem.gpu.display.cpu
quantem.gpu.display.backends.cuda	quantem.gpu.display.cpu
quantem.gpu.display.backends.webgpu	deleted
quantem.gpu.display.cuda	deleted
quantem.gpu.display.reference	deleted
quantem.gpu.display.webgpu	deleted
quantem.gpu.dpc.backends	deleted
quantem.gpu.dpc.backends.cuda	deleted
quantem.gpu.dpc.backends.cuda.backend	quantem.gpu.dpc.workflow
quantem.gpu.dpc.backends.mps	deleted
quantem.gpu.dpc.backends.mps.backend	deleted	1 of 1 names deleted
quantem.gpu.dpc.backends.webgpu	deleted
quantem.gpu.dpc.compute	deleted
quantem.gpu.dpc.compute.cuda	deleted
quantem.gpu.dpc.compute.cuda.backend	deleted
quantem.gpu.dpc.compute.mps	deleted
quantem.gpu.dpc.compute.mps.backend	deleted
quantem.gpu.dpc.compute.webgpu	deleted
quantem.gpu.geometry.workflow	quantem.gpu.geometry.rotation
quantem.gpu.io._ans_contract	deleted
quantem.gpu.io._ans_legacy	deleted
quantem.gpu.io._array_resident	quantem.gpu.io.arrays
quantem.gpu.io._array_sources	quantem.gpu.formats.empad
quantem.gpu.io._camera_mps	deleted	3 of 3 names deleted
quantem.gpu.io._compact_h5	deleted	5 of 5 names deleted
quantem.gpu.io._digitalmicrograph	quantem.gpu.io.digitalmicrograph
quantem.gpu.io._emd_metadata	quantem.gpu.formats.emd
quantem.gpu.io._float_ans	quantem.gpu.resident.float_ans	3 of 5 names deleted
quantem.gpu.io._hdf5_array_resident	quantem.gpu.io.arrays
quantem.gpu.io._hdf5_chunk_index	deleted
quantem.gpu.io._hot_pixels	quantem.gpu.resident.hot_pixels
quantem.gpu.io._memory	deleted
quantem.gpu.io._metadata	quantem.gpu.formats.emd, quantem.gpu.formats.hdf5.master
quantem.gpu.io._native_packed	deleted	1 of 1 names deleted
quantem.gpu.io._packed	deleted
quantem.gpu.io._paired	quantem.gpu.io.paired
quantem.gpu.io._precision	quantem.gpu.io.precision, quantem.gpu.formats.precision
quantem.gpu.io._prepared_series	deleted	1 of 1 names deleted
quantem.gpu.io._prepared_stack_metadata	quantem.gpu.formats.prepared_stack
quantem.gpu.io._publish	quantem.gpu.formats.publish
quantem.gpu.io._qem_metadata	quantem.gpu.formats.qem.metadata
quantem.gpu.io._qem_reference	quantem.gpu.formats.qem.reference, quantem.gpu.formats.qem.snapshot
quantem.gpu.io._read	quantem.gpu.io.read
quantem.gpu.io._resident	deleted	2 of 2 names deleted
quantem.gpu.io._selection	quantem.gpu.io.selection	1 of 2 names deleted
quantem.gpu.io._source112_archive	deleted
quantem.gpu.io._source112_archive_browser	deleted
quantem.gpu.io._streamed	quantem.gpu.io.encoded
quantem.gpu.io._streamed_file	quantem.gpu.io.qem, quantem.gpu.formats.qem.snapshot	5 of 8 names deleted
quantem.gpu.io.backends	deleted
quantem.gpu.io.backends.cpu	deleted
quantem.gpu.io.backends.cpu.dense	quantem.gpu.io.hdf5.cpu
quantem.gpu.io.backends.cuda	deleted
quantem.gpu.io.backends.cuda._ans	deleted	2 of 2 names deleted
quantem.gpu.io.backends.cuda.decoder	deleted
quantem.gpu.io.backends.cuda.float_ans	quantem.gpu.resident.cuda.float_ans
quantem.gpu.io.backends.cuda.hot_pixels	quantem.gpu.resident.cuda.hot_pixels
quantem.gpu.io.backends.cuda.packed	deleted	6 of 6 names deleted
quantem.gpu.io.backends.cuda.precision	quantem.gpu.resident.cuda.precision
quantem.gpu.io.backends.mps	deleted
quantem.gpu.io.backends.mps._ans	deleted	3 of 3 names deleted
quantem.gpu.io.backends.mps._spatial	quantem.gpu.resident.mps.spatial
quantem.gpu.io.backends.mps._streamed	quantem.gpu.resident.mps.counts
quantem.gpu.io.backends.mps.consumer	deleted	12 of 12 names deleted
quantem.gpu.io.backends.mps.dense	quantem.gpu.io.hdf5.mps.decode, quantem.gpu.io.hdf5.cpu	6 of 9 names deleted
quantem.gpu.io.backends.mps.float_ans	quantem.gpu.resident.mps.float_ans
quantem.gpu.io.backends.mps.hot_pixels	quantem.gpu.resident.mps.hot_pixels
quantem.gpu.io.backends.mps.packed	deleted	15 of 15 names deleted
quantem.gpu.io.backends.mps.precision	quantem.gpu.resident.mps.precision, quantem.gpu.resident.cuda.precision, quantem.gpu.resident.mps.arrays	2 of 18 names deleted
quantem.gpu.io.backends.mps.qh5	deleted	6 of 6 names deleted
quantem.gpu.io.backends.mps.resident_dpc	deleted	4 of 4 names deleted
quantem.gpu.io.backends.mps.series	deleted	2 of 2 names deleted
quantem.gpu.io.backends.protocol	quantem.gpu.detector.session	1 of 2 names deleted
quantem.gpu.io.backends.webgpu	deleted
quantem.gpu.io.constants	deleted
quantem.gpu.io.integrity	deleted	1 of 1 names deleted
quantem.gpu.io.load	quantem.gpu.io.selection, quantem.gpu.io.load, quantem.gpu.io.resample	5 of 8 names deleted
quantem.gpu.io.models	quantem.gpu.io.dataset, quantem.gpu.formats.hdf5.readiness
quantem.gpu.io.qem_conversion	quantem.gpu.io.convert
quantem.gpu.io.qem_validation	quantem.gpu.cli, quantem.gpu.formats.qem.validation
quantem.gpu.io.readiness	quantem.gpu.formats.hdf5.readiness
quantem.gpu.io.representation	quantem.gpu.io.representation, quantem.gpu.io.convert	1 of 3 names deleted
quantem.gpu.io.resident_contract	deleted	2 of 2 names deleted
quantem.gpu.io.save	quantem.gpu.io.hdf5.write, quantem.gpu.io.save	2 of 7 names deleted
quantem.gpu.io.ssb_result	quantem.gpu.formats.ssb_phase, quantem.gpu.cli
quantem.gpu.io.uint4	deleted	6 of 6 names deleted
quantem.gpu.movie	quantem.gpu.movie.export, quantem.gpu.movie.cuda
quantem.gpu.movie.cuda_mp4	quantem.gpu.movie.cuda
quantem.gpu.movie.mps_mp4	quantem.gpu.movie.cuda
quantem.gpu.optics.aberration	deleted	5 of 5 names deleted
quantem.gpu.optics.aberration_fitting	quantem.gpu.optics.cuda	4 of 5 names deleted
quantem.gpu.optics.physics	quantem.gpu.optics.physics	5 of 12 names deleted
quantem.gpu.parallax.backends	deleted
quantem.gpu.parallax.backends.cuda	deleted
quantem.gpu.parallax.backends.cuda.alignment	quantem.gpu.parallax.cuda.alignment	4 of 5 names deleted
quantem.gpu.parallax.backends.cuda.backend	quantem.gpu.parallax.cuda.reconstruction	2 of 3 names deleted
quantem.gpu.parallax.backends.cuda.correlation	quantem.gpu.parallax.cuda.correlation	2 of 3 names deleted
quantem.gpu.parallax.compute	deleted
quantem.gpu.parallax.compute.cuda	deleted
quantem.gpu.parallax.compute.cuda.alignment	deleted
quantem.gpu.parallax.compute.cuda.backend	deleted
quantem.gpu.parallax.compute.cuda.correlation	deleted
quantem.gpu.parallax.results	quantem.gpu.parallax.results	1 of 2 names deleted
quantem.gpu.remote.maped_api	deleted	8 of 8 names deleted
quantem.gpu.remote.prepare	deleted	1 of 1 names deleted
quantem.gpu.remote.server	quantem.gpu.remote.browse, quantem.gpu.remote.app, quantem.gpu.remote.catalog	7 of 12 names deleted
quantem.gpu.remote.ssb_api	quantem.gpu.remote.catalog	18 of 19 names deleted
quantem.gpu.screening._cuda	deleted
quantem.gpu.screening._memory	deleted	1 of 1 names deleted
quantem.gpu.screening._mps	deleted
quantem.gpu.ssb.backends	deleted
quantem.gpu.ssb.backends.contract	quantem.gpu.ssb.contract
quantem.gpu.ssb.backends.cuda	deleted
quantem.gpu.ssb.backends.cuda.backend	quantem.gpu.ssb.cuda.backend	1 of 2 names deleted
quantem.gpu.ssb.backends.cuda.engine	quantem.gpu.ssb.cuda.engine, quantem.gpu.ssb.cuda.kernels.engine
quantem.gpu.ssb.backends.cuda.kernels	quantem.gpu.ssb.cuda.kernels
quantem.gpu.ssb.backends.cuda.kernels.common	quantem.gpu.ssb.cuda.kernels.common
quantem.gpu.ssb.backends.cuda.kernels.fft1024	quantem.gpu.ssb.cuda.kernels.fft1024
quantem.gpu.ssb.backends.cuda.kernels.fft128	quantem.gpu.ssb.cuda.kernels.fft128
quantem.gpu.ssb.backends.cuda.kernels.fft256	quantem.gpu.ssb.cuda.kernels.fft256
quantem.gpu.ssb.backends.cuda.kernels.fft512	quantem.gpu.ssb.cuda.kernels.fft512
quantem.gpu.ssb.backends.cuda.optimizer	quantem.gpu.ssb.cuda.optimizer
quantem.gpu.ssb.backends.mps	deleted
quantem.gpu.ssb.backends.mps.backend	quantem.gpu.ssb.mps.backend
quantem.gpu.ssb.backends.mps.brightfield_columns	deleted
quantem.gpu.ssb.backends.mps.engine	quantem.gpu.ssb.mps.frames	1 of 3 names deleted
quantem.gpu.ssb.backends.mps.kernels	quantem.gpu.ssb.mps.kernels
quantem.gpu.ssb.backends.mps.kernels.common	quantem.gpu.ssb.mps.kernels.common
quantem.gpu.ssb.backends.mps.kernels.fft1024	quantem.gpu.ssb.mps.kernels.fft1024
quantem.gpu.ssb.backends.mps.kernels.fft128	quantem.gpu.ssb.mps.kernels.fft1024
quantem.gpu.ssb.backends.mps.kernels.fft256	quantem.gpu.ssb.mps.kernels.fft1024
quantem.gpu.ssb.backends.mps.kernels.fft512	quantem.gpu.ssb.mps.kernels.fft1024
quantem.gpu.ssb.backends.mps.optimizer	quantem.gpu.ssb.cuda.optimizer, quantem.gpu.ssb.mps.optimizer
quantem.gpu.ssb.backends.mps.thick_sample	quantem.gpu.ssb.mps.thick_sample, quantem.gpu.ssb.cuda.kernels.engine
quantem.gpu.ssb.backends.webgpu	deleted
quantem.gpu.ssb.plots	deleted	2 of 2 names deleted
quantem.gpu.ssb.temporal	deleted	6 of 6 names deleted
quantem.gpu.ssb.torch_ssb	deleted	1 of 1 names deleted
quantem.gpu.ssb.workflow	quantem.gpu.ssb.units, quantem.gpu.ssb.contract, quantem.gpu.ssb.workflow
quantem.gpu.swift.Benchmarks.MetalImageFFTBenchmark.compare_torch_fft	quantem.gpu.cli	6 of 7 names deleted
quantem.gpu.webgpu	deleted	3 of 3 names deleted