diff --git a/downloads-generation/data_mass_spec_benchmark/GENERATE.WITH_HPC_CLUSTER.sh b/downloads-generation/data_mass_spec_benchmark/GENERATE.WITH_HPC_CLUSTER.sh
index 132d78d3ad4040c16f104c10d9a9ab1cc70d883e..bfcb1d14a616015b049d52d6d518c7d5ac93e5eb 100755
--- a/downloads-generation/data_mass_spec_benchmark/GENERATE.WITH_HPC_CLUSTER.sh
+++ b/downloads-generation/data_mass_spec_benchmark/GENERATE.WITH_HPC_CLUSTER.sh
@@ -15,8 +15,8 @@ rm -rf "$SCRATCH_DIR/$DOWNLOAD_NAME"
 mkdir "$SCRATCH_DIR/$DOWNLOAD_NAME"
 
 # Send stdout and stderr to a logfile included with the archive.
-#exec >  >(tee -ia "$SCRATCH_DIR/$DOWNLOAD_NAME/LOG.txt")
-#exec 2> >(tee -ia "$SCRATCH_DIR/$DOWNLOAD_NAME/LOG.txt" >&2)
+exec >  >(tee -ia "$SCRATCH_DIR/$DOWNLOAD_NAME/LOG.txt")
+exec 2> >(tee -ia "$SCRATCH_DIR/$DOWNLOAD_NAME/LOG.txt" >&2)
 
 # Log some environment info
 date
@@ -29,17 +29,15 @@ cp $SCRIPT_DIR/write_proteome_peptides.py .
 cp $SCRIPT_DIR/run_mhcflurry.py .
 cp $SCRIPT_DIR/write_allele_list.py .
 
-
 PEPTIDES=$(mhcflurry-downloads path data_mass_spec_annotated)/annotated_ms.csv.bz2
 REFERENCES_DIR=$(mhcflurry-downloads path data_references)
 
-#python write_proteome_peptides.py \
-#    "$PEPTIDES" \
-#    "${REFERENCES_DIR}/uniprot_proteins.csv.bz2" \
-#    --out proteome_peptides.csv
-#ls -lh proteome_peptides.csv
-#bzip2 proteome_peptides.csv
-ln -s ~/Dropbox/sinai/projects/201808-mhcflurry-pan/20190622-models/proteome_peptides.csv.bz2 proteome_peptides.csv.bz2
+python write_proteome_peptides.py \
+    "$PEPTIDES" \
+    "${REFERENCES_DIR}/uniprot_proteins.csv.bz2" \
+    --out proteome_peptides.csv
+ls -lh proteome_peptides.csv
+bzip2 proteome_peptides.csv
 
 python write_allele_list.py "$PEPTIDES" --out alleles.txt
 
diff --git a/downloads-generation/data_mass_spec_benchmark/run_mhcflurry.py b/downloads-generation/data_mass_spec_benchmark/run_mhcflurry.py
index 435a6046ff96a115974f0065d8860d2464c04e86..84fb4fe568fe39053dccb6f518fa715004666ad7 100644
--- a/downloads-generation/data_mass_spec_benchmark/run_mhcflurry.py
+++ b/downloads-generation/data_mass_spec_benchmark/run_mhcflurry.py
@@ -55,7 +55,7 @@ parser.add_argument(
 parser.add_argument(
     "--chunk-size",
     type=int,
-    default=1000000,
+    default=100000000,
     help="Num peptides per job. Default: %(default)s")
 parser.add_argument(
     "--batch-size",
diff --git a/downloads-generation/data_mass_spec_benchmark/write_proteome_peptides.py b/downloads-generation/data_mass_spec_benchmark/write_proteome_peptides.py
index bc9c72280de549e675d2a93fa1234d365f41259c..e18daf9ee5d2dd70779e1aed166344c2cc9aa543 100644
--- a/downloads-generation/data_mass_spec_benchmark/write_proteome_peptides.py
+++ b/downloads-generation/data_mass_spec_benchmark/write_proteome_peptides.py
@@ -12,8 +12,6 @@ import pandas
 import tqdm  # progress bar
 tqdm.monitor_interval = 0  # see https://github.com/tqdm/tqdm/issues/481
 
-import shellinford
-
 
 parser = argparse.ArgumentParser(usage=__doc__)