depend on torchdata 0.8.0 instead of nightly

[ghstack-poisoned]

Author: tianyu-l

.ci/docker/requirements.txt

@@ -1,4 +1,5 @@
 torch >= 2.3.0
+torchdata >= 0.8.0
 datasets >= 2.19.0
 tomli >= 1.1.0 ; python_version < "3.11"
 tensorboard

.github/workflows/integration_test_4gpu.yaml

@@ -38,7 +38,6 @@ jobs:
         pip config --user set global.progress_bar off
 
         python -m pip install --force-reinstall --pre torch --index-url https://download.pytorch.org/whl/nightly/cu121
-        python -m pip install --pre torchdata --index-url https://download.pytorch.org/whl/nightly/
         USE_CPP=0 python -m pip install git+https://github.com/pytorch/ao.git
         mkdir artifacts-to-be-uploaded
         python ./test_runner.py artifacts-to-be-uploaded --ngpu 4

.github/workflows/integration_test_8gpu.yaml

@@ -37,6 +37,5 @@ jobs:
         pip config --user set global.progress_bar off
 
         python -m pip install --force-reinstall --pre torch --index-url https://download.pytorch.org/whl/nightly/cu121
-        python -m pip install --pre torchdata --index-url https://download.pytorch.org/whl/nightly/
         mkdir artifacts-to-be-uploaded
         python ./test_runner.py artifacts-to-be-uploaded --ngpu 8

.github/workflows/unit_test_cpu.yaml

@@ -25,5 +25,4 @@ jobs:
         pip config --user set global.progress_bar off
 
         pip install --force-reinstall --pre torch --index-url https://download.pytorch.org/whl/nightly/cpu
-        pip install --pre torchdata --index-url https://download.pytorch.org/whl/nightly
         pytest test --cov=. --cov-report=xml --durations=20 -vv

README.md

@@ -64,7 +64,6 @@ git clone https://github.com/pytorch/torchtitan
 cd torchtitan
 pip install -r requirements.txt
 pip3 install --pre torch --index-url https://download.pytorch.org/whl/nightly/cu121 # or cu118
-pip3 install --pre torchdata --index-url https://download.pytorch.org/whl/nightly
 ```
 
 ### Downloading a tokenizer