Highlights
Models
Nvidia Starcoder 2 - 15B
NeMo Canary
Announcement - https://nvidia.github.io/NeMo/blogs/2024/2024-02-canary/
NeMo LLM
- Falcon
- Code Llama
- StarCoder
- GPT perf improvements
- Context parallelism
- Mistral
- Mixtral (without expert parallelism)
- Mcore GPT Dataset integration
NeMo MM
- CLIP
- Stable Diffusion (supporting LoRA)
- Imagen
- ControlNet (for SD)
- Instruct pix2pix (for SD)
- LLAVA
- NeVA
- DreamFusion++
- NSFW filtering
NeMo ASR
- Lhotse Dataloading support #7880
- Canary: Multi task multi lingual ASR #8242
- LongForm Audio for Diarization #7737
- Faster algorithm for RNN-T Greedy #7926
- Cache-Aware streaming notebook #8296
NeMo TTS
NeMo Vision
Known Issues
ASR
RNNT WER calculation when fused batch size > 1 during validation / test step()
Previously, the RNNT metric was stateful while the CTC one was not (r1.22.0, r1.23.0)
Therefore this calculation in the RNNT joint for fused operation worked properly. However with the unification of metrics in r1.23.0, a bug was introduced where only the last sub-batch of metrics calculates the scores and does not accumulate. This is patched via https://github.com/NVIDIA/NeMo/pull/8587 and will be fixed in the next release.
Workaround: Explicitly disable fused batch size during inference using the following command
from omegaconf import open_dict
model = ...
decoding_cfg = model.cfg.decoding
with open_dict(decoding_cfg):
decoding_cfg.fused_batch_size = -1
model.change_decoding_strategy(decoding_cfg)
Note: This bug does not affect scores calculated via model.transcribe() (since it does not calculate metrics during inference, just text), or using the transcribe_speech.py or speech_to_text_eval.py in examples/asr.
Two failing unit tests due to a change in expected results, caused by lhotse version update.
Container
For additional information regarding NeMo containers, please visit: https://catalog.ngc.nvidia.com/orgs/nvidia/containers/nemo
docker pull nvcr.io/nvidia/nemo:24.01.speech
Detailed Changelogs
ASR
Changelog
- Update link to yaml file in ASR_with_Transducers.ipynb by @Faith-Nchifor :: PR: #8014
- Use convert_hf_dataset_to_nemo by @karpnv :: PR: #8017
- Update asr_language_modeling.rst: Add a missing word by @martin0258 :: PR: #8007
- spelling mistake by @orena1 :: PR: #7903
- update asr eval by @stevehuang52 :: PR: #8045
- fix noise aug by @stevehuang52 :: PR: #8057
- Various fixes for typos and urls by @titu1994 :: PR: #8066
- [Fix] Increase length check tolerance to prevent test failing by @anteju :: PR: #8067
- Add text metrics to asr eval by @stevehuang52 :: PR: #8087
- fix device setting to allow using accelerator cpu by @orena1 :: PR: #8084
- .ctm in data simulator annotator compliant with RT-09 specification by @popcornell :: PR: #8004
- Fix AST eval by @stevehuang52 :: PR: #8112
- fix: numba.*_num_threads resets torch num_threads #8141 by @itzsimpl :: PR: #8145
- Update dependencies by @titu1994 :: PR: #8156
- NeMo + Lhotse integration by @pzelasko :: PR: #7880
- Speedup RNN-T greedy decoding by @artbataev :: PR: #7926
- [docker] Install k2 before NeMo for faster image rebuilding by @pzelasko :: PR: #8204
- [docs] Add --force_codec to tarred dataset creation examples by @pzelasko :: PR: #8227
- Temporarily use the previous RNN-T decoding algorithm as default by @artbataev :: PR: #8226
- Make TDT inference not require duration params by @hainan-xv :: PR: #8207
- Cache Aware Streaming tutorial notebook by @erastorgueva-nv :: PR: #8296
- fix path location and branch by @nithinraok :: PR: #8304
- Attention encoder-decoder models for multiple speech-to-text tasks … by @titu1994 :: PR: #8324
- Remove asr webapp by @titu1994 :: PR: #8347
- remove target at model level in aed model config [ASR] by @krishnacpuvvada :: PR: #8351
- Add change_vocabulary and save_tokenizers() support to Multitask ASR models by @titu1994 :: PR: #8357
- Change default beam size by @titu1994 :: PR: #8371
- adding jenkins test for speech_to_text_aed model by @krishnacpuvvada :: PR: #8368
- Add Finetuning tutorial with HF Datasets by @nithinraok :: PR: #8356
- wer fix by @tbartley94 :: PR: #8404
- add ensemble decoding fix by @nithinraok :: PR: #8427
- Update k2 by @artbataev :: PR: #8492
TTS
Changelog
- [TTS] Scale sampler steps by number of devices by @rlangman :: PR: #7947
- Add All Multimodal Source Code Part 2: Text to image, x to nerf by @yaoyu-33 :: PR: #7970
- [TTS] Add period discriminator and feature matching loss to codec recipe by @rlangman :: PR: #7884
- Added VectorQuantizer base class by @anteju :: PR: #8011
LLMS
Changelog
- Add interface to set NCCL options of each process group by @erhoo82 :: PR: #7923
- Support O2 training of PEFT and SFT by @cuichenx :: PR: #7971
- [NLP] Access scaler only in FP16 case by @janekl :: PR: #7916
- [NLP] Minor improvements in Llama conversion script by @janekl :: PR: #7978
- [NLP] Use helpers from utils_funcs.py in Llama conversion by @janekl :: PR: #7979
- [NLP] Remove replace_sampler_ddp (deprecated in Trainer) by @janekl :: PR: #7981
- Reworked MegatronPretrainingRandomBatchSampler to correctly handle epochs > 1 by @trias702 :: PR: #7920
- Remove deprecated arguments from TE's TransformerLayer by @jbaczek :: PR: #7917
- Add All Multimodal Source Code by @yaoyu-33 :: PR: #7791
- First draft of mcore bert model in NeMo by @shanmugamr1992 :: PR: #7814
- Support Falcon Variants (7B/40B/180B) in Mcore NeMo by @xuanzic :: PR: #7666
- FSDP + Tensor Parallelism by @erhoo82 :: PR: #7897
- Packed Sequence by @cuichenx :: PR: #7945
- Adding method back that was removed accidentally by @ericharper :: PR: #8038
- [NLP] ArtifactItem with init=True to make it debuggable by @janekl :: PR: #7980
- SFT patch: (1) enable sequence parallelism and (2) enable profile by @erhoo82 :: PR: #7963
- migration to PTL 2.0 for spellmapper model by @bene-ges :: PR: #7924
- Change the megatron config lr scheduler default and fix to change partitions script by @shan18 :: PR: #8094
- (1) Add SHARP interface to M-CORE, (2) use send/recv to send train loss to the first rank instead of b-cast by @erhoo82 :: PR: #7793
- Reconfigure limit_val_batches only for int by @athitten :: PR: #8099
- Fixing wrapper and moving it to base class by @shanmugamr1992 :: PR: #8055
- fix gated_linear_unit bug by @Agoniii :: PR: #8042
- Fix Adapter for MCore models by @cuichenx :: PR: #8124
- add war fix for sync issues by @gshennvm :: PR: #8130
- Improve PEFT UX by @cuichenx :: PR: #8131
- Enhance flexibility by passing callbacks as method argument by @michal2409 :: PR: #8015
- context parallelism by @xrennvidia :: PR: #7739
- Make pipelined TP comm overlap available with mcore by @erhoo82 :: PR: #8005
- remove deprecated scripts by @arendu :: PR: #8138
- adding OnlineSampleMapping by @arendu :: PR: #8137
- Add distopt support for FP8 params and BF16 optimizer state by @timmoon10 :: PR: #7909
- Revert adding OnlineSampleMapping by @pablo-garay :: PR: #8164
- Token count and sequence length logging for MegatronGPTSFTModel by @vysarge :: PR: #8136
- Use latest apex internal API by @jbaczek :: PR: #8129
- tune specific params in the base model by @arendu :: PR: #7745
- Virtual pipeline parallel support for MegatronGPTSFTModel by @vysarge :: PR: #7964
- removed deprecated peft model by @arendu :: PR: #8183
- remove more deprecated files by @arendu :: PR: #8169
- Pre-generate cu_seqlens argmin and max_seqlen to remove host-to-device sync by @erhoo82 :: PR: #8108
- Add the interface to use SHARP to FSDP strategy by @erhoo82 :: PR: #8202
- Multimodal required NLP base model changes by @yaoyu-33 :: PR: #8188
- [NLP] Improve and unify loading state_dict for community models by @janekl :: PR: #7977
- Rename Finetuning Scripts by @cuichenx :: PR: #8201
- Final multimodal PR with our recent developments on MM side by @yaoyu-33 :: PR: #8127
- Add include_text parameter to SFT dataloaders by @Kipok :: PR: #8198
- Add random_seed argument to generate by @Kipok :: PR: #8162
- Added support for neptune logger by @harishankar-gopalan :: PR: #8210
- Pre-compute max_seqlen and cu_seqlens_argmin in all model-parallel cases by @erhoo82 :: PR: #8222
- Use PackedSeqParams in accordance with changes in Megatron-LM by @cuichenx :: PR: #8205
- Fix to peft & virtual pipeline parallel unsupported check by @vysarge :: PR: #8216
- Fixed the tp overlap switch by @sanandaraj5597 :: PR: #8195
- add knobs for rope/swiglu fusion by @lhb8125 :: PR: #8184
- Added sample cpu_offloading switch to YAML by @sanandaraj5597 :: PR: #8148
- Syncing random seed between ranks in generate by @Kipok :: PR: #8230
- add first_val_step to mcore scheduler by @JimmyZhang12 :: PR: #8150
- Correct padding for SFT input data to account for sequence parallel + TE's fp8 op dimension requirements by @vysarge :: PR: #8240
- Mistral 7b conversion script by @akoumpa :: PR: #8052
- switch to mcore dataset [with FIM support] by @dimapihtar :: PR: #8149
- Mixtral to NeMo conversion script. by @akoumpa :: PR: #8155
- fixes to accomendate mcore changes by @HuiyingLi :: PR: #8261
- Allow MegatronPretrainingRandomSampler to do multi-epoch training by @trias702 :: PR: #8239
- Add dist ckpt support for regular optimizers by @mikolajblaz :: PR: #7749
- add deallocate pipeline output optimization by @JimmyZhang12 :: PR: #8279
- Fix memory leak caused by context parallelism hanging references by omegaconf by @JimmyZhang12 :: PR: #8299
- distributed fused adam + rampup bs support by @dimapihtar :: PR: #8302
- Update PEFT Doc by @cuichenx :: PR: #8262
- Converter script fixes for mixtral/mistral by @akoumpa :: PR: #8272
- Keep max_seqlen and cu_seqlens_argmin for later micro-batches when PP>1 by @erhoo82 :: PR: #8334
- Enable megatron core loggers for GPT pretraining by @ashbhandare :: PR: #8354
- mcore ds fix by @dimapihtar :: PR: #8283
- release updates by @dimapihtar :: PR: #8378
- Mcore customization doc by @HuiyingLi :: PR: #8298
- updated link to pubmed by @nithinraok :: PR: #8402
- mcore customization doc minor fix by @HuiyingLi :: PR: #8421
- Fixing mcore bert for TP, PP and SP by @shanmugamr1992 :: PR: #8336
- Add settings to suppress bf16 compile errors in CI on V100 by @athitten :: PR: #8481
- MoE parameter passing by @akoumpa :: PR: #8255
- Add fp8 support for SD/Update notebook paths by @Victor49152 :: PR: #8489
Changelog
- SDE bugfix log by @Jorjeous :: PR: #8430
General Improvements
Changelog
- Add news section to README by @ericharper :: PR: #7984
- Fixing conversion script to work for code llama by @shanmugamr1992 :: PR: #7997
- Fix crash when converting to mcore a model using rotary embeddings by @odelalleau :: PR: #7998
- Added a procedure for Windows users, README by @Jorjeous :: PR: #7942
- Update manifest.py to speedup loading tarred datasets by @stevehuang52 :: PR: #7900
- [Fix] Fixed name of a test by @anteju :: PR: #7986
- Fix lora merge script by @cuichenx :: PR: #8113
- Support transcoding audio formats when saving tarred datasets (FLAC, OPUS) by @pzelasko :: PR: #8102
- README edit to change Apple Silicon install instructions (to fix a break introduced by pytorch 2) by @stephenmcconnachie :: PR: #8122
- Fixes NVIDIA/apex installation to not erroneously install the pkg by @terrykong :: PR: #8126
- Graphviz fix by @GNroy :: PR: #7843
- Update README.rst by @fayejf :: PR: #8154
- Fix TP>1 issue for conversion script by @cuichenx :: PR: #8144
- Support torch jit script by @artbataev :: PR: #8027
- NeMo Multimodal Docs and Tests Initial PR by @yaoyu-33 :: PR: #8028
- Remove left-over prints in NeMo+Lhotse code by @pzelasko :: PR: #8180
- Upgrade to DLFW PyTorch 23.12 by @ericharper :: PR: #8163
- Add Lhotse support for key in NeMo manifests by @pzelasko :: PR: #8197
- Fix CPU Initialization and TP>1 for LoRA Merge Script by @cuichenx :: PR: #8199
- Add support in Neural Typecheck to disable semantic checks by @titu1994 :: PR: #8212
- Pin lhotse=1.19.2 in r1.23.0 by @pzelasko :: PR: #8303
- Multimodal r1.23.0 bug fix by @yaoyu-33 :: PR: #8315
- MCore dataset compatibility for tokenizers by @vysarge :: PR: #8390
- Update NFA video download link by @erastorgueva-nv :: PR: #8406
- Update MM Dataprep Tutorial by @cuichenx :: PR: #8410
- Fix dreambooth data sampler issue by @yaoyu-33 :: PR: #8400
- Fix a bug in CTM line processing function for multi-speaker data simulations by @tango4j :: PR: #8416
- Akoumparouli/mistral bugfix by @akoumpa :: PR: #8353
- pin to 0.5.0 by @ericharper :: PR: #8465
- Update NeMo Multimodal Requirements by @yaoyu-33 :: PR: #8515
- Fix link in multimodal dataprep tutorial by @cuichenx :: PR: #8517