diff --git a/bitarray/src/lib.rs b/bitarray/src/lib.rs
index 0a5f647..056c211 100644
--- a/bitarray/src/lib.rs
+++ b/bitarray/src/lib.rs
@@ -168,7 +168,7 @@ impl BitArray {
 ///
 /// A `Result` indicating whether the write operation was successful or not.
 pub fn data_to_writer(
-    data: Vec<i64>,
+    data: &Vec<i64>,
     bits_per_value: usize,
     max_capacity: usize,
     writer: &mut impl Write
@@ -314,7 +314,7 @@ mod tests {
         let data = vec![0x1234567890, 0xabcdef0123, 0x4567890abc, 0xdef0123456];
         let mut writer = Vec::new();
 
-        data_to_writer(data, 40, 2, &mut writer).unwrap();
+        data_to_writer(&data, 40, 2, &mut writer).unwrap();
 
         assert_eq!(
             writer,
@@ -341,7 +341,7 @@ mod tests {
         ];
         let mut writer = Vec::new();
 
-        data_to_writer(data, 32, 8, &mut writer).unwrap();
+        data_to_writer(&data, 32, 8, &mut writer).unwrap();
 
         assert_eq!(
             writer,
@@ -380,7 +380,7 @@ mod tests {
         ];
         let mut writer = Vec::new();
 
-        data_to_writer(data, 32, 8, &mut writer).unwrap();
+        data_to_writer(&data, 32, 8, &mut writer).unwrap();
 
         assert_eq!(
             writer,
diff --git a/sa-builder/build_suffix_array.pbs b/sa-builder/build-compressed.pbs
similarity index 86%
rename from sa-builder/build_suffix_array.pbs
rename to sa-builder/build-compressed.pbs
index fac37e6..2f80cc1 100644
--- a/sa-builder/build_suffix_array.pbs
+++ b/sa-builder/build-compressed.pbs
@@ -24,7 +24,7 @@ module swap cluster/gallade
 #PBS -o stdout.$PBS_JOBID
 #PBS -e stderr.$PBS_JOBID
 
-prefix="$VSC_DATA_VO/bram/"
+prefix="/kyukon/data/gent/vo/000/gvo00038/suffix-array"
 
 # load Rust
 module load Rust/1.75.0-GCCcore-12.3.0
@@ -38,4 +38,4 @@ cd $PBS_O_WORKDIR
 cargo build --release
 
 # execute
-./target/release/suffixarray_builder -d "$prefix"uniprot_protein_database_minimal.tsv -t "$prefix"taxons.tsv --sparseness-factor 3 --construction-algorithm lib-div-suf-sort -o "$prefix"uniprot_suffix_array_sparse3.bin
+./target/release/sa-builder -d "$prefix"/proteins.tsv -t "$prefix"/taxons.tsv -o "$prefix"/sa_sparse3_compressed.bin -s 3 -a lib-div-suf-sort -c
diff --git a/sa-builder/build.pbs b/sa-builder/build.pbs
new file mode 100644
index 0000000..b1b8d2c
--- /dev/null
+++ b/sa-builder/build.pbs
@@ -0,0 +1,41 @@
+#!/bin/bash
+
+#########################################################################################################
+### This script is designed to run on the Ghent university HPC                                        ###
+###                                                                                                   ###
+### how to use:                                                                                       ###
+### 1) Swap to the high-memory gallade cluster by executing `module swap cluster/gallade`             ###
+### 2) Navigate the to root of the project                                                            ###
+### 3) Submit the job to the queue with `qsub suffixarray/build_suffix_array.pbs`                     ###
+#########################################################################################################
+
+# go to cluster with high memory
+module swap cluster/gallade
+
+# define requested memory, cpu resources and email notifications
+#PBS -m abe
+#PBS -l walltime=10:00:00
+#PBS -l mem=750gb
+# ask for 1 node, 1 cpu (not more needed since we don't have parallelism)
+#PBS -l nodes=1:ppn=1
+#PBS -N suffix_array_construction_uniprot
+
+# define output and error files
+#PBS -o stdout.$PBS_JOBID
+#PBS -e stderr.$PBS_JOBID
+
+prefix="/kyukon/data/gent/vo/000/gvo00038/suffix-array"
+
+# load Rust
+module load Rust/1.75.0-GCCcore-12.3.0
+module load Clang/16.0.6-GCCcore-12.3.0 # needed to build the bindings from Rust to C
+module load CMake/3.26.3-GCCcore-12.3.0
+
+# go to current working dir and execute
+cd $PBS_O_WORKDIR
+
+# compile
+cargo build --release
+
+# execute
+./target/release/sa-builder -d "$prefix"/proteins.tsv -t "$prefix"/taxons.tsv -o "$prefix"/sa_sparse3.bin -s 3 -a lib-div-suf-sort
diff --git a/sa-builder/src/main.rs b/sa-builder/src/main.rs
index 812bd7d..ec608c3 100644
--- a/sa-builder/src/main.rs
+++ b/sa-builder/src/main.rs
@@ -3,7 +3,7 @@ use std::{
         File,
         OpenOptions
     },
-    io::Result
+    io, time::{SystemTime, SystemTimeError, UNIX_EPOCH}
 };
 
 use clap::Parser;
@@ -33,24 +33,27 @@ fn main() {
 
     eprintln!();
     eprintln!("📋 Started loading the taxon file...");
+    let start_taxon_time = get_time_ms().unwrap();
     let taxon_id_calculator =
         TaxonAggregator::try_from_taxonomy_file(&taxonomy, AggregationMethod::LcaStar)
             .unwrap_or_else(|err| eprint_and_exit(err.to_string().as_str()));
-    eprintln!("✅ Successfully loaded the taxon file!");
+    eprintln!("✅ Successfully loaded the taxon file in {} seconds!", (get_time_ms().unwrap() - start_taxon_time) / 1000.0);
     eprintln!("\tAggregation method: LCA*");
 
     eprintln!();
     eprintln!("📋 Started loading the proteins...");
+    let start_proteins_time = get_time_ms().unwrap();
     let mut data =
         Proteins::try_from_database_file_without_annotations(&database_file, &taxon_id_calculator)
             .unwrap_or_else(|err| eprint_and_exit(err.to_string().as_str()));
-    eprintln!("✅ Successfully loaded the proteins!");
+    eprintln!("✅ Successfully loaded the proteins in {} seconds!", (get_time_ms().unwrap() - start_proteins_time) / 1000.0);
 
     eprintln!();
     eprintln!("📋 Started building the suffix array...");
+    let start_ssa_time = get_time_ms().unwrap();
     let sa = build_ssa(&mut data, &construction_algorithm, sparseness_factor)
         .unwrap_or_else(|err| eprint_and_exit(err.to_string().as_str()));
-    eprintln!("✅ Successfully built the suffix array!");
+    eprintln!("✅ Successfully built the suffix array in {} seconds!", (get_time_ms().unwrap() - start_ssa_time) / 1000.0);
     eprintln!("\tAmount of items: {}", sa.len());
     eprintln!("\tSample rate: {}", sparseness_factor);
 
@@ -60,29 +63,30 @@ fn main() {
 
     eprintln!();
     eprintln!("📋 Started dumping the suffix array...");
+    let start_dump_time = get_time_ms().unwrap();
 
     if compress_sa {
         let bits_per_value = (data.len() as f64).log2().ceil() as usize;
 
         if let Err(err) =
-            dump_compressed_suffix_array(sa, sparseness_factor, bits_per_value, &mut file)
+            dump_compressed_suffix_array(&sa, sparseness_factor, bits_per_value, &mut file)
         {
             eprint_and_exit(err.to_string().as_str());
         };
 
-        eprintln!("✅ Successfully dumped the suffix array!");
+        eprintln!("✅ Successfully dumped the suffix array in {} seconds!", (get_time_ms().unwrap() - start_dump_time) / 1000.0);
         eprintln!("\tAmount of bits per item: {}", bits_per_value);
     } else {
         if let Err(err) = dump_suffix_array(&sa, sparseness_factor, &mut file) {
             eprint_and_exit(err.to_string().as_str());
         }
 
-        eprintln!("✅ Successfully dumped the suffix array!");
+        eprintln!("✅ Successfully dumped the suffix array in {} seconds!", (get_time_ms().unwrap() - start_dump_time) / 1000.0);
         eprintln!("\tAmount of bits per item: 64");
     }
 }
 
-fn open_file(file: &str) -> Result<File> {
+fn open_file(file: &str) -> io::Result<File> {
     OpenOptions::new()
         .create(true)
         .write(true)
@@ -94,3 +98,7 @@ fn eprint_and_exit(err: &str) -> ! {
     eprintln!("{}", err);
     std::process::exit(1);
 }
+
+pub fn get_time_ms() -> Result<f64, SystemTimeError> {
+    Ok(SystemTime::now().duration_since(UNIX_EPOCH)?.as_nanos() as f64 * 1e-6)
+}
diff --git a/sa-compression/src/lib.rs b/sa-compression/src/lib.rs
index 85a41df..24fce68 100644
--- a/sa-compression/src/lib.rs
+++ b/sa-compression/src/lib.rs
@@ -26,7 +26,7 @@ use sa_index::SuffixArray;
 ///
 /// Returns an error if writing to the writer fails.
 pub fn dump_compressed_suffix_array(
-    sa: Vec<i64>,
+    sa: &Vec<i64>,
     sparseness_factor: u8,
     bits_per_value: usize,
     writer: &mut impl Write
@@ -146,7 +146,7 @@ mod tests {
         let sa = vec![1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
 
         let mut writer = vec![];
-        dump_compressed_suffix_array(sa, 1, 8, &mut writer).unwrap();
+        dump_compressed_suffix_array(&sa, 1, 8, &mut writer).unwrap();
 
         assert_eq!(
             writer,
@@ -167,7 +167,7 @@ mod tests {
             valid_write_count: 0
         };
 
-        dump_compressed_suffix_array(vec![], 1, 8, &mut writer).unwrap();
+        dump_compressed_suffix_array(&vec![], 1, 8, &mut writer).unwrap();
     }
 
     #[test]
@@ -177,7 +177,7 @@ mod tests {
             valid_write_count: 1
         };
 
-        dump_compressed_suffix_array(vec![], 1, 8, &mut writer).unwrap();
+        dump_compressed_suffix_array(&vec![], 1, 8, &mut writer).unwrap();
     }
 
     #[test]
@@ -187,7 +187,7 @@ mod tests {
             valid_write_count: 2
         };
 
-        dump_compressed_suffix_array(vec![], 1, 8, &mut writer).unwrap();
+        dump_compressed_suffix_array(&vec![], 1, 8, &mut writer).unwrap();
     }
 
     #[test]
@@ -197,7 +197,7 @@ mod tests {
             valid_write_count: 3
         };
 
-        dump_compressed_suffix_array(vec![1], 1, 8, &mut writer).unwrap();
+        dump_compressed_suffix_array(&vec![1], 1, 8, &mut writer).unwrap();
     }
 
     #[test]