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Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
It uses the fact that the number of the significant bits in each matrix element is much lesser than 32 i.e. the bit-width of each matrix element. Meaning we can compress multiple smaller elements into single matrix element. Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
…f compression works correctly Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
It is not possible to correctly compute decompressed matrix's number of columns just from compressed matrix's number of columns and compression-factor i.e. how many elements are compressed into a single one. Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
… as expected Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
… transposed database matrix Decompression is performed on the fly. This change should address the memory bandwidth bottleneck issue and open path to better performance for large databases. Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
…essed form, after it is transposed Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
…-len > 16 Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
…ngle one Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
…k with new fixed compression factor of 2 Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Based on whether uncompressed number of columns is even or odd, it separates codepath, which results in better performance. Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
…e `mat-elem-bit-len` as input anymore Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
…to make test run faster Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
…ve), based on cipher-text-bit-length Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
…arity 4 Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
… work with all the compression factors Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
…t-bit-length Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
… database using binary fuse filter Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
…ed-matrix multiplication works Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
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- Reduce memory usage server-side
- Increase PIR throughput