Merge branch 't5_scripts' into 'main'

Update T5 scripts

See merge request ADLR/megatron-lm!279

examples/pretrain_t5.sh

@@ -15,7 +15,7 @@ python pretrain_t5.py \
        --encoder-seq-length 512 \
        --decoder-seq-length 128 \
        --micro-batch-size 16 \
-       --global-batch-size 2048 \
+       --global-batch-size 16 \
        --max-position-embeddings 512 \
        --train-iters 1000000 \
        --lr-decay-iters 1000000 \
@@ -35,4 +35,5 @@ python pretrain_t5.py \
        --save-interval 10000 \
        --eval-interval 1000 \
        --eval-iters 10 \
-       --fp16
+       --fp16 \
+       --vocab-extra-ids 100

examples/pretrain_t5_distributed.sh

@@ -24,7 +24,7 @@ python -m torch.distributed.launch $DISTRIBUTED_ARGS \
        --encoder-seq-length 512 \
        --decoder-seq-length 128 \
        --micro-batch-size 16 \
-       --global-batch-size 2048 \
+       --global-batch-size 128 \
        --max-position-embeddings 512 \
        --train-iters 1000000 \
        --lr-decay-iters 1000000 \
@@ -44,4 +44,5 @@ python -m torch.distributed.launch $DISTRIBUTED_ARGS \
        --save-interval 10000 \
        --eval-interval 1000 \
        --eval-iters 10 \
-       --fp16
+       --fp16 \
+       --vocab-extra-ids 100

examples/pretrain_t5_distributed_with_mp.sh

@@ -24,7 +24,7 @@ python -m torch.distributed.launch $DISTRIBUTED_ARGS \
        --encoder-seq-length 512 \
        --decoder-seq-length 128 \
        --micro-batch-size 16 \
-       --global-batch-size 2048 \
+       --global-batch-size 128 \
        --seq-length 512 \
        --max-position-embeddings 512 \
        --train-iters 1000000 \
@@ -45,4 +45,5 @@ python -m torch.distributed.launch $DISTRIBUTED_ARGS \
        --save-interval 10000 \
        --eval-interval 1000 \
        --eval-iters 10 \
-       --fp16
+       --fp16  \
+       --vocab-extra-ids 100