add regression tests for model quantization

6 files changed, 148 insertions, 0 deletions

diff --git a/tests/training/features/quantized-model/quantized-no-opt.expected b/tests/training/features/quantized-model/quantized-no-opt.expected
new file mode 100644
index 0000000..c4ac602
--- /dev/null
+++ b/tests/training/features/quantized-model/quantized-no-opt.expected
@@ -0,0 +1,10 @@
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+224.28813171
+212.65242004
+204.06596375
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+190.08908081
+193.72296143
+195.20832825
diff --git a/tests/training/features/quantized-model/quantized-with-bias.expected b/tests/training/features/quantized-model/quantized-with-bias.expected
new file mode 100644
index 0000000..4f56c41
--- /dev/null
+++ b/tests/training/features/quantized-model/quantized-with-bias.expected
@@ -0,0 +1,10 @@
+225.10006714
+243.58285522
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+224.31018066
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diff --git a/tests/training/features/quantized-model/quantized.expected b/tests/training/features/quantized-model/quantized.expected
new file mode 100644
index 0000000..5f42a2c
--- /dev/null
+++ b/tests/training/features/quantized-model/quantized.expected
@@ -0,0 +1,10 @@
+225.25198364
+244.07009888
+230.06900024
+224.89492798
+213.12133789
+204.42272949
+198.22579956
+190.56004333
+194.42613220
+196.06826782
diff --git a/tests/training/features/quantized-model/test_quantmodel.sh b/tests/training/features/quantized-model/test_quantmodel.sh
new file mode 100644
index 0000000..75d3a1a
--- /dev/null
+++ b/tests/training/features/quantized-model/test_quantmodel.sh
@@ -0,0 +1,37 @@
+#!/bin/bash -x
+
+#####################################################################
+# SUMMARY: Train a quantized marian model
+# AUTHOR: afaji
+#####################################################################
+
+# Exit on error
+set -e
+
+PREFIX=quantized
+
+# Remove old artifacts and create working directory
+rm -rf $PREFIX $PREFIX.{log,out,diff}
+mkdir -p $PREFIX
+
+
+# Train an 8-bits model 
+$MRT_MARIAN/marian \
+    --no-shuffle --seed 1111 --dim-emb 32 --dim-rnn 64 --mini-batch 32 --maxi-batch 1 --maxi-batch-sort none --learn-rate 0.1 --optimizer sgd \
+    -m $PREFIX/model.npz -t $MRT_DATA/europarl.de-en/corpus.bpe.{en,de} -v train/vocab.en.yml train/vocab.de.yml \
+    --cost-type cross-entropy --sync-sgd --after-batches 100 --disp-freq 10 --quantize-bits 8 \
+    --log $PREFIX.log
+
+# Check if files exist
+test -e $PREFIX/model.npz
+test -e $PREFIX.log
+
+# Compare the current output with the expected output
+cat $PREFIX.log | $MRT_TOOLS/extract-costs.sh > $PREFIX.out
+$MRT_TOOLS/diff-nums.py $PREFIX.out $PREFIX.expected -o $PREFIX.diff 
+
+# make sure that the resulting model has no more than 256 different values (i.e. quantized)
+$MRT_TOOLS/check-model-unique-vals.py $PREFIX/model.npz -b 8
+
+# Exit with success code
+exit 0
diff --git a/tests/training/features/quantized-model/test_quantmodel_with_bias.sh b/tests/training/features/quantized-model/test_quantmodel_with_bias.sh
new file mode 100644
index 0000000..1878ecb
--- /dev/null
+++ b/tests/training/features/quantized-model/test_quantmodel_with_bias.sh
@@ -0,0 +1,44 @@
+#!/bin/bash -x
+
+#####################################################################
+# SUMMARY: Train a quantized marian model
+# AUTHOR: afaji
+#####################################################################
+
+# Exit on error
+set -e
+
+PREFIX=quantized-with-bias
+
+# Remove old artifacts and create working directory
+rm -rf $PREFIX $PREFIX.{log,out,diff}
+mkdir -p $PREFIX
+
+
+# training with quantized bias is tricky, so we start by training a normal model first before finetuning it to the quantized space.
+$MRT_MARIAN/marian \
+    --no-shuffle --seed 1111 --dim-emb 32 --dim-rnn 64 --mini-batch 32 --maxi-batch 1 --maxi-batch-sort none --learn-rate 0.1 --optimizer sgd \
+    -m $PREFIX/model.npz -t $MRT_DATA/europarl.de-en/corpus.bpe.{en,de} -v train/vocab.en.yml train/vocab.de.yml \
+    --cost-type cross-entropy --sync-sgd --after-batches 20 --disp-freq 10 \
+    --log $PREFIX.log
+
+# Train an 8-bits model 
+$MRT_MARIAN/marian \
+    --no-shuffle --seed 1111 --dim-emb 32 --dim-rnn 64 --mini-batch 32 --maxi-batch 1 --maxi-batch-sort none --learn-rate 0.1 --optimizer sgd \
+    -m $PREFIX/model.npz -t $MRT_DATA/europarl.de-en/corpus.bpe.{en,de} -v train/vocab.en.yml train/vocab.de.yml \
+    --cost-type cross-entropy --sync-sgd --after-batches 100 --disp-freq 10 --quantize-bits 8 --quantize-biases \
+    --log $PREFIX.log
+
+# Check if files exist
+test -e $PREFIX/model.npz
+test -e $PREFIX.log
+
+# Compare the current output with the expected output
+cat $PREFIX.log | $MRT_TOOLS/extract-costs.sh > $PREFIX.out
+$MRT_TOOLS/diff-nums.py $PREFIX.out $PREFIX.expected -o $PREFIX.diff
+
+# make sure that the resulting model has no more than 256 different values (i.e. quantized)
+$MRT_TOOLS/check-model-unique-vals.py $PREFIX/model.npz -b 8 --with_bias
+
+# Exit with success code
+exit 0
diff --git a/tests/training/features/quantized-model/test_quantmodel_with_optimization.sh b/tests/training/features/quantized-model/test_quantmodel_with_optimization.sh
new file mode 100644
index 0000000..368d920
--- /dev/null
+++ b/tests/training/features/quantized-model/test_quantmodel_with_optimization.sh
@@ -0,0 +1,37 @@
+#!/bin/bash -x
+
+#####################################################################
+# SUMMARY: Train a quantized marian model with a scale optimization
+# AUTHOR: afaji
+#####################################################################
+
+# Exit on error
+set -e
+
+PREFIX=quantized-opt
+
+# Remove old artifacts and create working directory
+rm -rf $PREFIX $PREFIX.{log,out,diff}
+mkdir -p $PREFIX
+
+
+# Train an 8-bits model 
+$MRT_MARIAN/marian \
+    --no-shuffle --seed 1111 --dim-emb 32 --dim-rnn 64 --mini-batch 32 --maxi-batch 1 --maxi-batch-sort none --learn-rate 0.1 --optimizer sgd \
+    -m $PREFIX/model.npz -t $MRT_DATA/europarl.de-en/corpus.bpe.{en,de} -v train/vocab.en.yml train/vocab.de.yml \
+    --cost-type cross-entropy --sync-sgd --after-batches 100 --disp-freq 10 --quantize-bits 8 --quantize-optimization-steps 3 \
+    --log $PREFIX.log
+
+# Check if files exist
+test -e $PREFIX/model.npz
+test -e $PREFIX.log
+
+# Compare the current output with the expected output
+cat $PREFIX.log | $MRT_TOOLS/extract-costs.sh > $PREFIX.out
+$MRT_TOOLS/diff-nums.py $PREFIX.out $PREFIX.expected -o $PREFIX.diff 
+
+# make sure that the resulting model has no more than 256 different values (i.e. quantized)
+$MRT_TOOLS/check-model-unique-vals.py $PREFIX/model.npz -b 8
+
+# Exit with success code
+exit 0