$ NUM_THREADS=24 NUM_MAPS=96 ./llil4tkh2 big{1,2,3}.txt | cksum
llil4tkh2 (fixed string length=12) start
sharding managed by the application
use OpenMP
use boost sort
get properties         0.446 secs   23.645 mil QPS
hashDBMs to vector     0.354 secs
vector stable sort     0.081 secs
write stdout           0.210 secs
total time             1.092 secs
    count lines     10545600
    count unique    10367603
2956888413 93308427

# Results for 26 big files:

$ NUM_THREADS=24 NUM_MAPS=96 ./llil4tkh2 in/biga* | cksum
llil4tkh2 (fixed string length=12) start
sharding managed by the application
use OpenMP
use boost sort
get properties         3.507 secs   26.051 mil QPS
hashDBMs to vector     1.777 secs
vector stable sort     0.665 secs
write stdout           1.532 secs
total time             7.483 secs
    count lines     91395200
    count unique    79120065
2005669956 712080585

$ NUM_THREADS=48 NUM_MAPS=128 ./llil4tkh2 in/biga* | cksum
llil4tkh2 (fixed string length=12) start
sharding managed by the application
use OpenMP
use boost sort
get properties         2.335 secs   39.141 mil QPS
hashDBMs to vector     1.410 secs
vector stable sort     0.677 secs
write stdout           1.555 secs
total time             5.979 secs
    count lines     91395200
    count unique    79120065
2005669956 712080585

# One billion+ lines (312 big files)

$ NUM_THREADS=48 NUM_MAPS=128 ./llil4tkh2 \
   in/biga* in/biga* in/biga* in/biga* in/biga* in/biga* \
   in/biga* in/biga* in/biga* in/biga* in/biga* in/biga* \
| cksum
llil4tkh2 (fixed string length=12) start
sharding managed by the application
use OpenMP
use boost sort
get properties        24.295 secs   45.143 mil QPS
hashDBMs to vector     1.410 secs
vector stable sort     0.644 secs
write stdout           1.439 secs
total time            27.790 secs
    count lines     1096742400
    count unique    79120065
3625599930 791200650