Update README and ignore kernels in CI (#387)

Author: eltsai

.github/workflows/UnitTests.yml

@@ -57,11 +57,11 @@ jobs:
     - name: PyTest
       run: | #--deselect=src/maxdiffusion/tests/input_pipeline_interface_test.py
         export LIBTPU_INIT_ARGS='--xla_tpu_scoped_vmem_limit_kib=65536'
-        HF_HUB_CACHE=/mnt/disks/github-runner-disk/ HF_HOME=/mnt/disks/github-runner-disk/ TOKENIZERS_PARALLELISM=false python3 -m pytest --deselect=src/maxdiffusion/tests/ltx_transformer_step_test.py -x
-#  add_pull_ready:
+        HF_HUB_CACHE=/mnt/disks/github-runner-disk/ HF_HOME=/mnt/disks/github-runner-disk/ TOKENIZERS_PARALLELISM=false python3 -m pytest --ignore=src/maxdiffusion/kernels/ --deselect=src/maxdiffusion/tests/ltx_transformer_step_test.py -x
+#  add_pull_ready
 #    if: github.ref != 'refs/heads/main'
 #    permissions:
 #      checks: read
 #      pull-requests: write
 #    needs: build
-#    uses: ./.github/workflows/AddLabel.yml
+#    uses: ./.github/workflows/AddLabel.yml

README.md

@@ -17,6 +17,7 @@
 [![Unit Tests](https://github.com/AI-Hypercomputer/maxdiffusion/actions/workflows/UnitTests.yml/badge.svg)](https://github.com/AI-Hypercomputer/maxdiffusion/actions/workflows/UnitTests.yml)
 
 # What's new?
+- **`2026/04/16`**: Support for Tokamax Ring Attention kernel is now added.
 - **`2026/03/31`**: Wan2.2 SenCache inference is now supported for T2V and I2V (up to 1.4x speedup)
 - **`2026/03/25`**: Wan2.1 and Wan2.2 Magcache inference is now supported
 - **`2026/03/25`**: LTX-2 Video Inference is now supported
@@ -623,6 +624,24 @@ To generate images, run the following command:
     ...
   ```
 
+### Ring Attention
+We added ring attention support for Wan models. Below are the stats for one `720p` (81 frames) video generation (with CFG DP):
+| Accelerator |  Model | Attention Type | Inference Steps | Sharding | e2e Generation Time |
+| -- | -- | -- | -- | -- | -- | 
+| v7x-8 | WAN 2.1 | Tokamax Flash | 50 | dp2-fsdp1-context4-tp1 | 264.2 |
+| v7x-8 | WAN 2.1 | Tokamax Ring | 50 | dp2-fsdp1-context4-tp1 | **252.4** |
+| v7x-8 | WAN 2.2 | Tokamax Flash | 40 | dp2-fsdp1-context4-tp1 | 212.7 |
+| v7x-8 | WAN 2.2 | Tokamax Ring | 40 | dp2-fsdp1-context4-tp1 | **201.7** |
+
+| Accelerator |  Model | Attention Type | Inference Steps | Sharding | e2e Generation Time |
+| -- | -- | -- | -- | -- | -- | 
+| v7x-16 | WAN 2.1 | Tokamax Flash | 50 | dp2-fsdp1-context8-tp1 | 146.6 |
+| v7x-16 | WAN 2.1 | Tokamax Ring | 50 | dp2-fsdp1-context8-tp1 | **137.2** |
+| v7x-16 | WAN 2.2 | Tokamax Flash | 40 | dp2-fsdp1-context8-tp1 | **117.8** |
+| v7x-16 | WAN 2.2 | Tokamax Ring | 40 | dp2-fsdp1-context8-tp1 | 137.5 |
+
+(* There are some known stability issues for ring attention on 16 TPUs, please use `tokamax_flash` attention instead.)
+
   ## Flux
 
   First make sure you have permissions to access the Flux repos in Huggingface.