fix the example scripts in parallel_inference_xdit.py

tools/parallel_inference/parallel_inference_xdit.py

@@ -7,16 +7,20 @@
 By using this code, the inference process is parallelized on multiple GPUs,
 and thus speeded up.
 
-You can also use the run.sh file in the same folder to automate running this
-code for batch generation of videos.
-
 Usage:
 1. pip install xfuser
-2. run the following command to generate video
-torchrun --nproc_per_node=4 cogvideox_xdit.py --model <cogvideox-model-path> \
-    --ring_degree 2 --use_cfg_parallel --height 480 --width 720 --num_frames 9 \
+2. mkdir results
+3. run the following command to generate video
+torchrun --nproc_per_node=4 parallel_inference_xdit.py \
+    --model <cogvideox-model-path> --ulysses_degree 1 --ring_degree 2 \
+    --use_cfg_parallel --height 480 --width 720 --num_frames 9 \
     --prompt 'A small dog.'
 
+You can also use the run.sh file in the same folder to automate running this
+code for batch generation of videos, by running:
+
+sh ./run.sh
+
 """
 
 import time