example_laesa.sh

Searching using the LAESA index.

echo "generating random numbers and saving them to text files"
metricknn \
    -query_vectors_random      20000 5 0 100 uint8 \
    -reference_vectors_random  20000 5 0 100 uint8 \
    -query_print_txt           20000vec_5d_v1.txt \
    -reference_print_txt       20000vec_5d_v2.txt

echo "testing linear scan (it should take a few seconds)"
metricknn \
    -query_vectors_file     20000vec_5d_v1.txt uint8 \
    -reference_vectors_file 20000vec_5d_v2.txt uint8 \
    -distance L1 \
    -knn 3 \
    -threads 1 \
    -no_print_knn

if [[ $? -ne 0 ]]; then exit 1; fi

echo "testing laesa (it should be faster than linear scan)"
metricknn \
    -query_vectors_file     20000vec_5d_v1.txt uint8 \
    -reference_vectors_file 20000vec_5d_v2.txt uint8 \
    -distance L1 \
    -knn 3 \
    -threads 1 \
    -no_print_knn \
    -index "LAESA,num_pivots=2"

if [[ $? -ne 0 ]]; then exit 1; fi

echo "all ok"