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0.45.0dev
14
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 jingyu-ml
|
26ae8da517 |
[2/3] Implicit Gemm NVFP4 (#1227)
### What does this PR do? Type of change: new feature <!-- Use one of the following: Bug fix, new feature, new example, new tests, documentation. --> - Add Conv3D implicit GEMM kernel with BF16 WMMA tensor cores and fused NVFP4 activation quantization for video diffusion VAE layers - Integrate into _QuantConv3d via QuantModuleRegistry — automatically dispatched when NVFP4 quantization is applied to nn.Conv3d - Move kernel from `experimental/conv/ to modelopt/torch/kernels/conv/`; move tests to `tests/gpu/torch/quantization/kernels/` ### Testing <!-- Mention how have you tested your change if applicable. --> - Added test cases to measure the difference between cuDNN and our CUDA implicit GEMM kernel - Added an NVFP4 fake quantization test using CUDA code ### Before your PR is "*Ready for review*" Make sure you read and follow [Contributor guidelines](https://github.com/NVIDIA/Model-Optimizer/blob/main/CONTRIBUTING.md) and your commits are signed (`git commit -s -S`). Make sure you read and follow the [Security Best Practices](https://github.com/NVIDIA/Model-Optimizer/blob/main/SECURITY.md#security-coding-practices-for-contributors) (e.g. avoiding hardcoded `trust_remote_code=True`, `torch.load(..., weights_only=False)`, `pickle`, etc.). - Is this change backward compatible?: ✅ <!--- If ❌, explain why. --> - If you copied code from any other sources or added a new PIP dependency, did you follow guidance in `CONTRIBUTING.md`: ✅ <!--- Mandatory --> - Did you write any new necessary tests?: ✅ <!--- Mandatory for new features or examples. --> - Did you update [Changelog](https://github.com/NVIDIA/Model-Optimizer/blob/main/CHANGELOG.rst)?: ✅ <!--- Only for new features, API changes, critical bug fixes or backward incompatible changes. --> ### Additional Information <!-- E.g. related issue. --> <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **New Features** * Per-backbone quantization/export in a single run with per-backbone checkpoints and backbone-aware quant filters * Configurable NVFP4 block-size via CLI/config; improved NVFP4 Conv3D inference path and Wan 2.2 quantization support * **Bug Fixes** * Video-model calibration now respects extra params and forces video decoding during calibration * **Documentation** * Added comprehensive Conv3D implicit‑GEMM kernel documentation; removed experimental Conv3D prototype docs/benchmark * **Tests** * New Wan 2.2 quantization/export tests and expanded Conv3D/FP4 kernel test coverage <!-- end of auto-generated comment: release notes by coderabbit.ai --> --------- Signed-off-by: Jingyu Xin <jingyux@nvidia.com> |
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|
jingyu-ml
|
feec81ad2b |
Add the Skip softmax for diffusion (#1166)
### What does this PR do?
Type of change: new feature, new example <!-- Use one of the following:
Bug fix, new feature, new example, new tests, documentation. -->
<!-- Details about the change. -->
## Summary
- Add skip-softmax sparse attention (BLASST) for diffusion models via
dedicated Triton kernels — an inference kernel with tile skipping and a
calibration kernel with vectorized multi-threshold sparsity measurement
- Add `triton_skip_softmax` method with exponential model calibration
(`scale_factor = a * exp(b * sparsity)`) and log-space fitting for
diffusion models
- Add Triton kernel backends for diffusers and LTX attention dispatch
- Fix calibration to skip RULER dataset generation when user provides
their own `forward_loop` (required for non-LLM models)
## Changes
### Triton kernels (`modelopt/torch/kernels/triton_fa.py`)
- **`_attn_fwd`**: Forward kernel with optional tile skipping — tiles
whose max attention score is far below the running softmax max are
skipped entirely (no V load, no softmax, no accumulation). Runtime
sparsity measurement via atomic counters.
- **`_attn_fwd_calibrate`**: Calibration kernel that computes full
attention while measuring how many tiles would be skipped at each of N
thresholds simultaneously. Uses per-program output buffers (zero atomic
contention) and vectorized multi-threshold comparison.
- **`attention()`** / **`attention_calibrate()`**: Python wrappers for
inference and calibration kernels.
### Kernel backends
(`modelopt/torch/sparsity/attention_sparsity/kernels/`)
- **`diffusers_triton_attention.py`**: Registers `modelopt_triton`
backend in diffusers' attention dispatch. Handles [B, S, H, D] → varlen
layout conversion, calibration/inference mode switching, thread-local
configuration, and counter accumulation.
- **`ltx_triton_attention.py`**: Patches `ltx_core.Attention` modules
for Triton dispatch with the same calibration/inference modes.
### Method
(`modelopt/torch/sparsity/attention_sparsity/methods/triton_skip_softmax.py`)
- `TritonSkipSoftmaxMethod`: Context managers for calibration (→
calibration kernel) and inference (→ forward kernel with tile skipping).
Three threshold priority levels: raw threshold > calibrated scale_factor
> static threshold.
### Calibration
(`modelopt/torch/sparsity/attention_sparsity/calibration/`)
- **`calibrator.py`**: `DynamicThresholdCalibrator` with `fit_logspace`
option — fits exponential model in log space (minimizes relative error)
for diffusion models where scale_factors span many orders of magnitude.
Records observed sparsity range for extrapolation warnings.
- **`calibrate.py`**: Skips RULER dataset when `forward_loop` is
provided; passes `fit_logspace` through from config.
### Config & conversion
- **`config.py`**: `CalibrationConfig.fit_logspace` field (default
False, recommended True for diffusion models).
`skip_softmax_raw_threshold` field for direct threshold mode.
- **`conversion.py`**: Auto-registers diffusers/LTX Triton backends on
`sparsify()`. Updated summary display.
### Example
- **`wan22_skip_softmax.py`**: End-to-end example for WAN 2.2 5B/14B
with baseline, raw-threshold, and calibrated modes. Supports runtime
sparsity reporting.
## Threshold modes
| Mode | How it works | Use case |
|------|-------------|----------|
| **Raw threshold** (`--raw-threshold -0.7`) | Passed directly to kernel
as `skip_threshold_log2` | Quick testing, sweeps |
| **Calibrated** (`--calibrate --target-sparsity 0.5`) | `scale_factor =
a * exp(b * target)`, then `threshold = scale_factor / seq_k` at runtime
| Production use with seqlen adaptation |
| **Static** (default `skip_softmax_threshold=0.1`) | `log2(lambda) *
sm_scale` | Fallback |
## Usage
```bash
# Fixed raw threshold (no calibration)
python examples/diffusers/sparsity/wan22_skip_softmax.py \
--model-path /path/to/Wan2.2-T2V-A14B-Diffusers \
--raw-threshold -0.7 \
--prompt "A cat playing piano" --output out.mp4
# With calibration (log-space fit for diffusion models)
python examples/diffusers/sparsity/wan22_skip_softmax.py \
--model-path /path/to/Wan2.2-T2V-A14B-Diffusers \
--calibrate --target-sparsity 0.5 \
--prompt "A cat playing piano" --output out.mp4
# Dense baseline for comparison
python examples/diffusers/sparsity/wan22_skip_softmax.py \
--model-path /path/to/Wan2.2-T2V-A14B-Diffusers \
--baseline \
--prompt "A cat playing piano" --output baseline.mp4
```
### Before your PR is "*Ready for review*"
Make sure you read and follow [Contributor
guidelines](https://github.com/NVIDIA/Model-Optimizer/blob/main/CONTRIBUTING.md)
and your commits are signed (`git commit -s -S`).
Make sure you read and follow the [Security Best
Practices](https://github.com/NVIDIA/Model-Optimizer/blob/main/SECURITY.md#security-coding-practices-for-contributors)
(e.g. avoiding hardcoded `trust_remote_code=True`, `torch.load(...,
weights_only=False)`, `pickle`, etc.).
- Is this change backward compatible?: ✅ <!--- If ❌, explain why. -->
- If you copied code from any other sources or added a new PIP
dependency, did you follow guidance in `CONTRIBUTING.md`: ✅ <!---
Mandatory -->
- Did you write any new necessary tests?: ✅ <!--- Mandatory for new
features or examples. -->
- Did you update
[Changelog](https://github.com/NVIDIA/Model-Optimizer/blob/main/CHANGELOG.rst)?:
❌ <!--- Only for new features, API changes, critical bug fixes or
backward incompatible changes. -->
### Additional Information
<!-- E.g. related issue. -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
## Release Notes
* **New Features**
* Added skip-softmax sparse attention support for Diffusers models,
enabling efficient video generation
* Added support for both eager and Triton attention backends for sparse
attention
* Added new example script for Wan 2.2 text-to-video generation with
sparse attention optimization
* **Documentation**
* Updated documentation with sparse attention configuration guide and
usage examples
* **Tests**
* Added comprehensive unit tests for kernel backend registration and
skip-softmax functionality
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Signed-off-by: Jingyu Xin <jingyux@nvidia.com>
|
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|
Keval MorabiaandClaude Sonnet 4.6
|
80a77d1cc0 |
Add LTX-2 third-party license notices for legal compliance (#1226)
## Summary LTX-2 (`ltx-core`, `ltx-pipelines`, `ltx-trainer`) is a third-party dependency developed and provided by Lightricks. It is governed by the [LTX Community License Agreement](https://github.com/Lightricks/LTX-2/blob/main/LICENSE), **not** the Apache 2.0 license that covers NVIDIA Model Optimizer. Per legal guidance, all integration points must clearly surface this to users. - Add `[!WARNING]` license notice blocks at the top of all LTX-2-related READMEs (`examples/diffusers`, `examples/diffusers/distillation`, `examples/windows/diffusers/qad_example`) - Add `warnings.warn(UserWarning)` at every LTX package import site in Python files, covering both top-level and lazy imports: - `examples/diffusers/distillation/distillation_trainer.py` - `examples/diffusers/quantization/calibration.py` - `examples/diffusers/quantization/pipeline_manager.py` - `examples/windows/diffusers/qad_example/sample_example_qad_diffusers.py` - `modelopt/torch/export/diffusers_utils.py` - `modelopt/torch/quantization/plugins/diffusion/ltx2.py` - Add license notice comment to `requirements.txt` files that list LTX packages, so the obligation is visible at install time - Update `.github/CODEOWNERS` so all `requirements*.txt` files (covering variants like `requirements-dev.txt`) are owned by `@NVIDIA/modelopt-setup-codeowners` regardless of location, via a last-match-wins rule **Design notes:** - For library files (`diffusers_utils.py`, `ltx2.py`), the warning is placed at the lazy import site inside functions — it fires only when LTX-2 code paths are actually invoked, not at module import time, to avoid polluting non-LTX users - For example entry-point scripts that are LTX-2-only, the warning fires at module load time (after all imports, to satisfy ruff E402) ## Test plan - [ ] Confirm `pre-commit run --all-files` passes (ruff, mypy, markdownlint, bandit all clean) - [ ] Verify warning appears at runtime when running an LTX-2 quantization or distillation example - [ ] Confirm non-LTX code paths (FLUX, SDXL, SD3) do not emit the warning 🤖 Generated with [Claude Code](https://claude.com/claude-code) <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **Documentation** * Added third-party license notices across documentation and requirements files clarifying LTX-2 packages are governed by the LTX Community License Agreement rather than NVIDIA Model Optimizer's Apache 2.0 license. * **Chores** * Updated code ownership configuration for requirements files. * Added runtime warnings to notify when LTX-2 dependencies are accessed. <!-- end of auto-generated comment: release notes by coderabbit.ai --> Signed-off-by: Keval Morabia <28916987+kevalmorabia97@users.noreply.github.com> Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com> |
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|
Ajinkya Rasane
|
8f4c11aa44 |
Upgrade the TensorRT container version (#1112)
### What does this PR do? Type of change: Container version update - Upgraded the TensorRT container version to 26.02 - This supports TensorRT 10.15.1 ### Testing Unit and integrations tests pass ### Before your PR is "*Ready for review*" Make sure you read and follow [Contributor guidelines](https://github.com/NVIDIA/Model-Optimizer/blob/main/CONTRIBUTING.md) and your commits are signed (`git commit -s -S`). Make sure you read and follow the [Security Best Practices](https://github.com/NVIDIA/Model-Optimizer/blob/main/SECURITY.md#security-coding-practices-for-contributors) (e.g. avoiding hardcoded `trust_remote_code=True`, `torch.load(..., weights_only=False)`, `pickle`, etc.). - Is this change backward compatible?: ✅ / ❌ / N/A <!--- If ❌, explain why. --> - If you copied code from any other sources or added a new PIP dependency, did you follow guidance in `CONTRIBUTING.md`: ✅ / ❌ / N/A <!--- Mandatory --> - Did you write any new necessary tests?: ✅ / ❌ / N/A <!--- Mandatory for new features or examples. --> - Did you update [Changelog](https://github.com/NVIDIA/Model-Optimizer/blob/main/CHANGELOG.rst)?: ✅ / ❌ / N/A <!--- Only for new features, API changes, critical bug fixes or backward incompatible changes. --> <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **Documentation** * Updated example guides to reference the latest TensorRT Docker image version (26.02) * Added compatibility note for onnxruntime-gpu usage * **Chores** * Updated CI/CD workflows to use the latest TensorRT Docker image version <!-- end of auto-generated comment: release notes by coderabbit.ai --> --------- Signed-off-by: ajrasane <131806219+ajrasane@users.noreply.github.com> |
||
|
jingyu-ml
|
37d3f10cbd |
To support LTX2 ComfyUI format (#972)
### What does this PR do?
Type of change: Bug fix <!-- Use one of the following: Bug fix, new
feature, new example, new tests, documentation. -->
<!-- Details about the change. -->
- Added a flag merged_base_safetensor_path to the example code so that
user can export the ComfyUI style ckpt.
### Usage
```bash
python quantize.py \
--model ltx-2 --format fp4 --batch-size 1 --calib-size 32 --n-steps 40 \
--extra-param checkpoint_path=./ltx-2-19b-dev-fp8.safetensors \
--extra-param distilled_lora_path=./ltx-2-19b-distilled-lora-384.safetensors \
--extra-param spatial_upsampler_path=./ltx-2-spatial-upscaler-x2-1.0.safetensors \
--extra-param gemma_root=./gemma-3-12b-it-qat-q4_0-unquantized \
--extra-param fp8transformer=true \
--quantized-torch-ckpt-save-path ./ltx-2-transformer.pt \
--hf-ckpt-dir ./LTX2-NVFP4/ \
--extra-param merged_base_safetensor_path=./ltx-2-19b-dev-fp8.safetensors
```
### Testing
<!-- Mention how have you tested your change if applicable. -->
### Before your PR is "*Ready for review*"
Make sure you read and follow [Contributor
guidelines](https://github.com/NVIDIA/Model-Optimizer/blob/main/CONTRIBUTING.md)
and your commits are signed (`git commit -s -S`).
Make sure you read and follow the [Security Best
Practices](https://github.com/NVIDIA/Model-Optimizer/blob/main/SECURITY.md#security-coding-practices-for-contributors)
(e.g. avoiding hardcoded `trust_remote_code=True`, using
`torch.load(..., weights_only=True)`, avoiding `pickle`, etc.).
- Is this change backward compatible?: ✅ / ❌ / N/A <!--- If ❌, explain
why. -->
- If you copied code from any other source, did you follow IP policy in
[CONTRIBUTING.md](https://github.com/NVIDIA/Model-Optimizer/blob/main/CONTRIBUTING.md#-copying-code-from-other-sources)?:
✅ / ❌ / N/A <!--- Mandatory -->
- Did you write any new necessary tests?: ✅ / ❌ / N/A <!--- Mandatory
for new features or examples. -->
- Did you update
[Changelog](https://github.com/NVIDIA/Model-Optimizer/blob/main/CHANGELOG.rst)?:
✅ / ❌ / N/A <!--- Only for new features, API changes, critical bug fixes
or backward incompatible changes. -->
### Additional Information
<!-- E.g. related issue. -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Documentation**
* Added new command-line parameters documentation for LTX-2 FP4
quantization examples (--hf-ckpt-dir and merged_base_safetensor_path
configuration options)
* **Improvements**
* Enhanced quantization pipeline to support conditional export behavior
based on model type
* Expanded LTX-Video model filtering patterns for more comprehensive
block detection
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Signed-off-by: Jingyu Xin <jingyux@nvidia.com>
|
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|
jingyu-ml
|
10efcb65f6 |
[3.1/4] Diffusion Quantized ckpt export - WAN 2.2 14B (#855)
## What does this PR do?
**Type of change:** documentation <!-- Use one of the following: Bug
fix, new feature, new example, new tests, documentation. -->
**Overview:**
1. Added multi‑backbone support for quantization: --backbone now accepts
space- or comma-separated lists and resolves to a list of backbone
modules.
2. Introduced PipelineManager.iter_backbones() to iterate named backbone
modules and updated get_backbone() to return a single module or a
ModuleList for multi‑backbone.
3. Updated ExportManager to save/restore per‑backbone checkpoints when a
directory is provided, with {backbone_name}.pt files, and to create
target directories when missing.
4. Simplified save_checkpoint() calls to rely on the registered
pipeline_manager by default.
**Usage: **
```bash
python quantize.py --model wan2.2-t2v-14b --format fp4 --batch-size 1 --calib-size 32 \
--n-steps 30 --backbone transformer transformer_2 --model-dtype BFloat16 \
--quantized-torch-ckpt-save-path ./wan22_mo_ckpts \
--hf-ckpt-dir ./wan2.2-t2v-14b
```
Plans
- [x] [1/4] Add the basic functionalities to support limited image
models with NVFP4 + FP8, with some refactoring on the previous LLM code
and the diffusers example. PIC: @jingyu-ml
- [x] [2/4] Add support to more video gen models. PIC: @jingyu-ml
- [x] [3/4] Add test cases, refactor on the doc, and all related README.
PIC: @jingyu-ml
- [ ] [4/4] Add the final support to ComfyUI. PIC @jingyu-ml
## Testing
<!-- Mention how have you tested your change if applicable. -->
## Before your PR is "*Ready for review*"
<!-- If you haven't finished some of the above items you can still open
`Draft` PR. -->
- **Make sure you read and follow [Contributor
guidelines](https://github.com/NVIDIA/Model-Optimizer/blob/main/CONTRIBUTING.md)**
and your commits are signed.
- **Is this change backward compatible?**: No <!--- If No, explain why.
-->
- **Did you write any new necessary tests?**:No
- **Did you add or update any necessary documentation?**: Yes
- **Did you update
[Changelog](https://github.com/NVIDIA/Model-Optimizer/blob/main/CHANGELOG.rst)?**:
Yes <!--- Only for new features, API changes, critical bug fixes or bw
breaking changes. -->
## Additional Information
<!-- E.g. related issue. -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
## Release Notes
* **New Features**
* Unified Hugging Face export support for diffusers pipelines and
components
* LTX-2 and Wan2.2 (T2V) support in diffusers quantization workflow
* Comprehensive ONNX export and TensorRT engine build documentation for
diffusion models
* **Documentation**
* Updated to clarify support for both transformers and diffusers models
in unified export API
* Expanded diffusers examples with LoRA fusion guidance and additional
model options (Flux, SD3, SDXL variants)
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Signed-off-by: Jingyu Xin <jingyux@nvidia.com>
|
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Asha Anoosheh
|
510451322c |
Streamline KD & QAD transformers Trainers (#708)
## What does this PR do? **Type of change:** ? Refactor and stabilization **Overview:** * Enforce use of FSDP-2 on KD and QAD trainers in HF plugins/examples so that we can remove multiple restrictions ## Usage <!-- You can potentially add a usage example below. --> ```python # Add a code snippet demonstrating how to use this ``` ## Testing <!-- Mention how have you tested your change if applicable. --> ## Before your PR is "*Ready for review*" <!-- If you haven't finished some of the above items you can still open `Draft` PR. --> - **Make sure you read and follow [Contributor guidelines](https://github.com/NVIDIA/Model-Optimizer/blob/main/CONTRIBUTING.md)** and your commits are signed. - **Is this change backward compatible?**: Yes/No <!--- If No, explain why. --> - **Did you write any new necessary tests?**: Yes/No - **Did you add or update any necessary documentation?**: Yes/No - **Did you update [Changelog](https://github.com/NVIDIA/Model-Optimizer/blob/main/CHANGELOG.rst)?**: Yes/No <!--- Only for new features, API changes, critical bug fixes or bw breaking changes. --> ## Additional Information <!-- E.g. related issue. --> --------- Signed-off-by: Asha Anoosheh <aanoosheh@nvidia.com> |
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|
Keval Morabia
|
53a2ddebab |
Product Rename: TensorRT Model Optimizer to Model Optimizer (#583)
- [x] Product Rename: TensorRT Model Optimizer to Model Optimizer (OMNIML-3033) - [x] Mention in Latest News section with date on the date of merging this PR (12/08) Signed-off-by: Keval Morabia <28916987+kevalmorabia97@users.noreply.github.com> |
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Shengliang XuandKeval Morabia
|
e0a6efbe70 |
fix trt engine building of the diffusers pipelines (#637)
## What does this PR do? **Type of change:** Bug fix **Overview:** 1. The diffusion_trt.py needs the dynamic_shapes when running trtexec for engine building. A previous change altered the format of dynamic_shapes, fix it here. 2. the dynamic_shapes logic gets cleaned up. The existing logic is very confusing 3. recover min-batch_size config for some pipelines. Previously some pipelines set the min batch_size to be > 1, which was odd, so a previous change sets them to be 1, but it turns out the oddity has a reason, the trt engine building fails with the altered batch_size min/opt, thus recover them. ## Testing pytest tests/examples/diffusers --------- Signed-off-by: Shengliang Xu <shengliangx@nvidia.com> Signed-off-by: Keval Morabia <28916987+kevalmorabia97@users.noreply.github.com> Co-authored-by: Keval Morabia <28916987+kevalmorabia97@users.noreply.github.com> |
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|
ajrasane
|
229053323a |
[NVBUG: 5619158] Enforce high precision model dtype for diffusion trt (#526)
## What does this PR do? **Type of change:** Minor code change **Overview:** - Select the high precision dtype directly based on model type - FP16 for Stable Diffusion models, BF16 for Flux ## Testing ```python python diffusion_trt.py --model flux-dev --benchmark ``` ## Before your PR is "*Ready for review*" <!-- If you haven't finished some of the above items you can still open `Draft` PR. --> - **Make sure you read and follow [Contributor guidelines](https://github.com/NVIDIA/TensorRT-Model-Optimizer/blob/main/CONTRIBUTING.md)** and your commits are signed. - **Is this change backward compatible?**: No (No option to specify dtype while loading pipeline) - **Did you write any new necessary tests?**: No - **Did you add or update any necessary documentation?**: Yes - **Did you update [Changelog](https://github.com/NVIDIA/TensorRT-Model-Optimizer/blob/main/CHANGELOG.rst)?**: Yes --------- Signed-off-by: ajrasane <131806219+ajrasane@users.noreply.github.com> |
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Keval Morabia
|
c0590b0255 |
Deprecate ModelOpt custom docker and directly use TRT-LLM / PyTorch / TRT docker (#346)
Signed-off-by: Keval Morabia <28916987+kevalmorabia97@users.noreply.github.com> |
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Keval Morabia
|
1ef1d72a1b |
Code quality improvements - typos, formatting, etc.
Signed-off-by: Keval Morabia <28916987+kevalmorabia97@users.noreply.github.com> |
||
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Keval Morabia
|
4d1eb0caf5 |
Major improvement of READMEs and documentation
Signed-off-by: Keval Morabia <28916987+kevalmorabia97@users.noreply.github.com> |
||
|
Keval Morabia
|
2017cd9063 | Update for 0.25.0 release |