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ChangeLog
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ChangeLog
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1.3.0 - includes in-memory suffix sorting/indexing
1.2.9.2 - build with CMake
1.2.9.1 - don't require core2
1.2.9 - Bug fixes, deduplication, grep-like output in femto_search
1.2.8 - Open Source Release
1.2.7 - Bug fixes
1.2.6 - Bug fixes with indexer using too much memory.
Indexer supports FASTA file format.
1.2.5 - Fixes bug with %s in patterns in vizualisation tool
Minor changes to parallel indexer
1.2.4 - Can construct and use single-file indexes to ease integration.
1.2.3 - Bug fixes
Visualization bug fixes, includes missing files from 1.2.2.
Cancelled browsing no longer crashes FEMTO Apache module
1.2.2 - Bug fixes, Multi-index, Matches, Approximate, Web-page improvements
Bug fixes:
Server checks not to exhaust max # open files or mappings
indexer should not run out of memory on large problems.
Multi-index:
./search_tool can now be passed multiple index paths on the
command line.
Showing Matches:
In ./search_tool, pass --matches to see the text that matches a
regular expression or approximate search query.
Approximate Search:
Approximate search is now supported. See main/QUERY_FORMAT.txt.
Web-page improvements
Web-page vizualization now uses jQuery and SlickGrid,
and shows how a pattern can match, incrementally loads documents,
and can zoom in. Also, the web-page supports ?pattern and ?query
GET arguments, in addition to ?index (which can be a JSON array
to handle multiple indexes).
Future improvements include:
-- sorting in the grids
1.2.1 - Minor bug fixes.
Document clustering is off by default; more work needs to be done
to get the benefits of document clustering.
New visualization tool uses SVG and XmlHttpRequest to draw
the most likely bytes before or after a pattern. See
src/mod_femto/README
1.2.0 - Hopefully improved scalability of parallel suffix sort.
changed splitter computation to be more parallel.
Fixed a bug in mpi_copy_file.
Made the FEMTO query side parallel with pthreads.
Removed name: from index files; migration script exists.
Added document clustering pass to index construction.
1.1.1 - Clean up of query format to be more consistent and reasonable
about what to escape when. Fixed bug with [^\x00-\xff] matching
all documents.
New interface for ingesting data.
1.1.0 - optimizations to wavelet tree/binary sequence format
to reduce seeks and to improve compression. A binary
sequence for random data is currently 104% size down
from 152% in previous versions. Likewise, an index
for 128MB of random data is 130% with default settings,
down from 180% in previous versions. These improvements
also apply to nonrandom data - 72 MB of human-readable
documents from gutenberg/etext97 used to have a
56% index size and that size is now 47% with default
settings. These improvements come at a modest
performance cost to in-memory indexes.
1.0.0 - index format change to fix a bug; also attempt
to reduce the number of seeks. Changed wavelet tree
group size. This is the first release that has built
a 100GB index without crashing (there were memory leaks).
0.9.2 - fixed failure when running MPI jobs with more than 2
jobs per node but using seperate (local) temp dirs by
adding barrier to the copy routine. Made indexer output
quieter.
Fixed index construction to aim for 400 MB/s in order
to limit memory requirements.
Increased sample size.
0.9.1 - fixed core dump during index construction