Comments (2)
nwhitehorn
commented on September 10, 2024
Is there a reason we want to use fseek? The way we encode pipeline state, and so the whole processing model, kind of break if we do that. For one-off debugging, this is somewhat useful, but you still need some kind of index of where you should fseek to, which means you need to read the whole file once anyway, so just decompressing it seems easy enough...
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arahlin
commented on September 10, 2024
The so3g tools use this functionality. We added indexing with fseek/ ftell to the G3Reader already in a previous PR. This open issue is just closing the loop, so that this functionality works on compressed data as well.
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Related Issues (20)
- Cannot use empty G3TimestreamMap() constructor HOT 1
- Docs parser is broken in Python 3.11
- G3SkyMapMask is not efficiently stored on disk
- Inconsistent numpy detection HOT 1
- Integer overflow in `maps.HealpixSkyMap.angle_to_pixel` for `nside` = 16384 HOT 1
- G3MapVectorInt and G3MapInt should use int64
- Integrate polarization rotation into mapmaking
- Imp module is deprecated HOT 1
- C++11 mode and -Werror prevent building with new Boost versions
- G3Reader fails on multiple files when last file is empty HOT 1
- GZIP_2 compression of a flat-sky map seems lossy in some cases HOT 4
- Incorrect behavior of `numpy.abs()` on `G3VectorQuat` objects HOT 1
- Consolidate python GIL / threads context handling
- Sparse backend for healpix masks
- Python buffer access for G3SkyMapMask objects
- Boost 1.82+ requires standard C++14
- Build issue with gcc >= 11 HOT 2
- Segfault on buffers with non-trivial strides HOT 2
- G3SkyMapWeights.clone not preserving flat_pol property
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