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#!/bin/bash -x
# Exit on error
set -e
if (( $MRT_NUM_DEVICES < 2 )); then
echo "Too few devices available"
exit 100
fi
# Test code goes here
rm -rf expsmooth_sync expsmooth_sync*.log
mkdir -p expsmooth_sync
opts="--no-shuffle --seed 777 --mini-batch 4 --maxi-batch 1 --maxi-batch-sort none --dim-rnn 64 --dim-emb 32 --optimizer adam --learn-rate 0.0001 --valid-sets valid.bpe.en valid.bpe.de --valid-metrics cross-entropy --valid-mini-batch 32 --devices 0 1 --sync-sgd"
# No exponential smoothing
$MRT_MARIAN/marian \
-m expsmooth_sync/model.noexp.npz -t $MRT_DATA/europarl.de-en/corpus.bpe.{en,de} -v vocab.en.yml vocab.de.yml --clip-norm 0 --cost-type ce-mean-words \
--disp-freq 20 --valid-freq 20 --after-batches 200 $opts \
--log expsmooth_sync_0.log
test -e expsmooth_sync/model.noexp.npz
test -e expsmooth_sync_0.log
cat expsmooth_sync_0.log | $MRT_TOOLS/strip-timestamps.sh | grep "Ep\. " | grep -v 'valid' | sed 's/ : Time.*//' > noexpsmooth_sync.out
#cat expsmooth_sync_0.log | $MRT_TOOLS/strip-timestamps.sh | grep "Ep\. " | grep 'valid' | sed 's/ : Time.*//' > noexpsmooth_sync.valid.out
# With exponential smoothing
$MRT_MARIAN/marian \
-m expsmooth_sync/model.npz -t $MRT_DATA/europarl.de-en/corpus.bpe.{en,de} -v vocab.en.yml vocab.de.yml --clip-norm 0 --cost-type ce-mean-words \
--disp-freq 20 --valid-freq 20 --after-batches 200 --exponential-smoothing 0.0001 $opts \
--log expsmooth_sync.log
test -e expsmooth_sync/model.npz
test -e expsmooth_sync.log
cat expsmooth_sync.log | $MRT_TOOLS/strip-timestamps.sh | grep "Ep\. " | grep -v 'valid' | sed 's/ : Time.*//' > expsmooth_sync.out
cat expsmooth_sync.log | $MRT_TOOLS/strip-timestamps.sh | grep "Ep\. " | grep 'valid' | sed 's/ : Time.*//' > expsmooth_sync.valid.out
$MRT_TOOLS/diff-nums.py -p 0.0001 expsmooth_sync.out expsmooth_sync.expected -o expsmooth_sync.diff
$MRT_TOOLS/diff-nums.py -p 0.0001 expsmooth_sync.valid.out expsmooth_sync.valid.expected -o expsmooth_sync.valid.diff
# There should be no difference in costs between training w/ and w/o exponential smoothing
$MRT_TOOLS/diff-nums.py -p 0.0001 expsmooth_sync.out noexpsmooth_sync.out -o noexpsmooth_sync.diff
# Exit with success code
exit 0
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