Introducing index IO operations over char buffer #1
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In favor of #2 |
abhinavdangeti
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Jul 11, 2024
…Lists (facebookresearch#3327) Summary: Pull Request resolved: facebookresearch#3327 **Context** 1. [Issue 2621](facebookresearch#2621) discuss inconsistency between OnDiskInvertedList and InvertedList. OnDiskInvertedList is supposed to handle disk based multiple Index Shards. Thus, we should name it differently when merging invls from index shard. 2. [Issue 2876](facebookresearch#2876) provides usecase of shifting ids when merging invls from different shards. **In this diff**, 1. To address #1 above, I renamed the merge_from function to merge_from_multiple without touching merge_from base class. why so? To continue to allow merge invl from one index to ondiskinvl from other index. 2. To address #2 above, I have added support of shift_ids in merge_from_multiple to shift ids from different shards. This can be used when each shard has same set of ids but different data. This is not recommended if id is already unique across shards. Reviewed By: mdouze Differential Revision: D55482518 fbshipit-source-id: 95470c7449160488d2b45b024d134cbc037a2083
abhinavdangeti
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Jul 11, 2024
…ookresearch#3527) Summary: Pull Request resolved: facebookresearch#3527 **Context** Design Doc: [Faiss Benchmarking](https://docs.google.com/document/d/1c7zziITa4RD6jZsbG9_yOgyRjWdyueldSPH6QdZzL98/edit) **In this diff** 1. Be able to reference codec and index from blobstore (bucket & path) outside the experiment 2. To support #1, naming is moved to descriptors. 3. Build index can be written as well. 4. You can run benchmark with train and then refer it in index built and then refer index built in knn search. Index serialization is optional. Although not yet exposed through index descriptor. 5. Benchmark can support index with different datasets sizes 6. Working with varying dataset now support multiple ground truth. There may be small fixes before we could use this. 7. Added targets for bench_fw_range, ivf, codecs and optimize. **Analysis of ivf result**: D58823037 Reviewed By: algoriddle Differential Revision: D57236543 fbshipit-source-id: ad03b28bae937a35f8c20f12e0a5b0a27c34ff3b
abhinavdangeti
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that referenced
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Jul 12, 2024
…Lists (facebookresearch#3327) Summary: Pull Request resolved: facebookresearch#3327 **Context** 1. [Issue 2621](facebookresearch#2621) discuss inconsistency between OnDiskInvertedList and InvertedList. OnDiskInvertedList is supposed to handle disk based multiple Index Shards. Thus, we should name it differently when merging invls from index shard. 2. [Issue 2876](facebookresearch#2876) provides usecase of shifting ids when merging invls from different shards. **In this diff**, 1. To address #1 above, I renamed the merge_from function to merge_from_multiple without touching merge_from base class. why so? To continue to allow merge invl from one index to ondiskinvl from other index. 2. To address #2 above, I have added support of shift_ids in merge_from_multiple to shift ids from different shards. This can be used when each shard has same set of ids but different data. This is not recommended if id is already unique across shards. Reviewed By: mdouze Differential Revision: D55482518 fbshipit-source-id: 95470c7449160488d2b45b024d134cbc037a2083
abhinavdangeti
pushed a commit
that referenced
this pull request
Jul 12, 2024
…ookresearch#3527) Summary: Pull Request resolved: facebookresearch#3527 **Context** Design Doc: [Faiss Benchmarking](https://docs.google.com/document/d/1c7zziITa4RD6jZsbG9_yOgyRjWdyueldSPH6QdZzL98/edit) **In this diff** 1. Be able to reference codec and index from blobstore (bucket & path) outside the experiment 2. To support #1, naming is moved to descriptors. 3. Build index can be written as well. 4. You can run benchmark with train and then refer it in index built and then refer index built in knn search. Index serialization is optional. Although not yet exposed through index descriptor. 5. Benchmark can support index with different datasets sizes 6. Working with varying dataset now support multiple ground truth. There may be small fixes before we could use this. 7. Added targets for bench_fw_range, ivf, codecs and optimize. **Analysis of ivf result**: D58823037 Reviewed By: algoriddle Differential Revision: D57236543 fbshipit-source-id: ad03b28bae937a35f8c20f12e0a5b0a27c34ff3b
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