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quantem.gpu
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Install
Python workflows
Gold: I/O, DPC and SSB
Advanced: probe and reconstruction
Save and share your data
API reference
Python API
Load data and select patterns
BF, ADF, and DPC images
SSB phase and aberrations
Movie API
Devices, optics, parallax, and scan rotation
Developer guide
Developer guide
Scientific operations
Scientific contract
Data model and coordinates
Load, decode, and bin
BF, DF, and ADF reductions
CoM, DPC, and iDPC
Single-sideband ptychography
Explicit scan regions
Display and export kernels
Shared Metal image statistics
Backend implementations
Python MPS
CUDA
Native Swift and Metal
Native Swift and Metal
WebGPU
Android Vulkan
CPU reference
Native application integration
Load native acquisitions
Native acquisition formats and metadata
Original HDF5 packed loading
Native encoded inputs and scaled output
Native Metal image endpoints
File formats and codecs
QEM specification
QEM codec layouts
QEM metadata mapping and completeness
QEM references and interoperability checks
K3 DM4 and saved .qem copies
Dense and lossless-packed data
Prepared packed format
Native Lossless Pack Format v1 producer
Count-ANS container
Paired-count resident layout
QuantEM.GPU Remote
Deploy a Linux CUDA host
Connect locally or over SSH
Protocol and integration
GPU admission and residency
Testing and benchmarks
Implementation overview
Testing and evidence
Coverage and runbooks
Evidence-backed readiness
Verified benchmark results
Revision and change ledger
Backend coverage
Benchmark methodology
CUDA codec speed and peak memory
Continuous profiling
Cross-backend parity
Strict ANS acquisition acceptance
Optimization ledger
Load acceptance evidence
SSB performance notes
SSB performance evidence
Contributing changes
Kernel architecture
Repository architecture
Adding a backend or kernel
Count and Fourier representation integration
Reproducing resident count analysis
Writing, notation, and units
Historical records
Packed-resident optimization evidence
Migration notes
Native Metal HDF5 Loader Postmortem
M2 Air Metal evidence
Remote CUDA evidence
SSB architecture
SSB units and thick-sample model (2026-09-24)
Downstream sync after the restructure (2026-10-05)
SSB detector sampling and fit state (2026-10-05)
Native Metal SSB migration
Virtual-Image Kernel Checklist
Historical experiments
WebGPU G(q,k) memory history
WebGPU frame-cooperative decode
Experimental resident ANS
Experimental Metal entropy series (2026-09-08)
Reproduce the rc8 installation
Index