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egs/librispeech/s5/local/nnet2/run_6a_clean_460.sh
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#!/bin/bash
# This is p-norm neural net training, with the "fast" script, on top of adapted
# 40-dimensional features.
# This version uses 460 hours of "clean" (typically relatively un-accented)
# training data.
# We're using 6 jobs rather than 4, for speed.
# Note: we highly discourage running this with --use-gpu false, it will
# take way too long.
train_stage=-10
use_gpu=true
. ./cmd.sh
. ./path.sh
. utils/parse_options.sh
if $use_gpu; then
if ! cuda-compiled; then
cat <<EOF && exit 1
This script is intended to be used with GPUs but you have not compiled Kaldi with CUDA
If you want to use GPUs (and have them), go to src/, and configure and make on a machine
where "nvcc" is installed.
EOF
fi
parallel_opts="--gpu 1"
num_threads=1
minibatch_size=512
dir=exp/nnet6a_clean_460_gpu
else
# with just 4 jobs this might be a little slow.
num_threads=16
parallel_opts="--num-threads $num_threads"
minibatch_size=128
dir=exp/nnet6a_clean_460
fi
. ./cmd.sh
. utils/parse_options.sh
if [ ! -f $dir/final.mdl ]; then
if [[ $(hostname -f) == *.clsp.jhu.edu ]]; then
# spread the egs over various machines. will help reduce overload of any
# one machine.
utils/create_split_dir.pl /export/b0{1,2,3,4}/$USER/kaldi-data/egs/librispeech/s5/$dir/egs/storage $dir/egs/storage
fi
steps/nnet2/train_pnorm_fast.sh --stage $train_stage \
--samples-per-iter 400000 \
--num-epochs 7 --num-epochs-extra 3 \
--parallel-opts "$parallel_opts" \
--num-threads "$num_threads" \
--minibatch-size "$minibatch_size" \
--num-jobs-nnet 6 --mix-up 10000 \
--initial-learning-rate 0.01 --final-learning-rate 0.001 \
--num-hidden-layers 4 \
--pnorm-input-dim 4000 --pnorm-output-dim 400 \
--cmd "$decode_cmd" \
data/train_clean_460 data/lang exp/tri5b $dir || exit 1
fi
for test in test_clean test_other dev_clean dev_other; do
steps/nnet2/decode.sh --nj 20 --cmd "$decode_cmd" \
--transform-dir exp/tri5b/decode_tgsmall_$test \
exp/tri5b/graph_tgsmall data/$test $dir/decode_tgsmall_$test || exit 1;
steps/lmrescore.sh --cmd "$decode_cmd" data/lang_test_{tgsmall,tgmed} \
data/$test $dir/decode_{tgsmall,tgmed}_$test || exit 1;
steps/lmrescore_const_arpa.sh \
--cmd "$decode_cmd" data/lang_test_{tgsmall,tglarge} \
data/$test $dir/decode_{tgsmall,tglarge}_$test || exit 1;
steps/lmrescore_const_arpa.sh \
--cmd "$decode_cmd" data/lang_test_{tgsmall,fglarge} \
data/$test $dir/decode_{tgsmall,fglarge}_$test || exit 1;
done
exit 0;
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