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nnet1: replacing 'bc' by 'awk' in steps/nnet/train_scheduler.sh #1333

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Merged
danpovey merged 1 commit into from
Jan 11, 2017
Merged

nnet1: replacing 'bc' by 'awk' in steps/nnet/train_scheduler.sh #1333

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8 changes: 4 additions & 4 deletions egs/wsj/s5/steps/nnet/train_scheduler.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -136,7 +136,7 @@ for iter in $(seq -w $max_iters); do

# accept or reject?
loss_prev=$loss
if [ 1 == $(bc <<< "$loss_new < $loss") -o $iter -le $keep_lr_iters -o $iter -le $min_iters ]; then
if [ 1 == $(awk "BEGIN{print($loss_new < $loss ? 1:0);}") -o $iter -le $keep_lr_iters -o $iter -le $min_iters ]; then
# accepting: the loss was better, or we had fixed learn-rate, or we had fixed epoch-number,
loss=$loss_new
mlp_best=$dir/nnet/${mlp_base}_iter${iter}_learnrate${learn_rate}_tr$(printf "%.4f" $tr_loss)_cv$(printf "%.4f" $loss_new)
Expand All @@ -159,8 +159,8 @@ for iter in $(seq -w $max_iters); do
[ $iter -le $keep_lr_iters ] && continue

# stopping criterion,
rel_impr=$(bc <<< "scale=10; ($loss_prev-$loss)/$loss_prev")
if [ 1 == $halving -a 1 == $(bc <<< "$rel_impr < $end_halving_impr") ]; then
rel_impr=$(awk "BEGIN{print(($loss_prev-$loss)/$loss_prev);}")
if [ 1 == $halving -a 1 == $(awk "BEGIN{print($rel_impr < $end_halving_impr ? 1:0);}") ]; then
if [ $iter -le $min_iters ]; then
echo we were supposed to finish, but we continue as min_iters : $min_iters
continue
Expand All @@ -170,7 +170,7 @@ for iter in $(seq -w $max_iters); do
fi

# start learning-rate fade-out when improvement is low,
if [ 1 == $(bc <<< "$rel_impr < $start_halving_impr") ]; then
if [ 1 == $(awk "BEGIN{print($rel_impr < $start_halving_impr ? 1:0);}") ]; then
halving=1
echo $halving >$dir/.halving
fi
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