you can use the bPfile.c to generate your .bin file ( this is the baby step table)
./bPfile 1048576000 Pfile.bin
[+] precalculating 1048576000 bP elements in file Pfile.bin
This process can take some time, please be patient, maybe some hour depent of your speed.
Once that the file is already created, execute:
albertobsd $ ./keyhunt -m bsgs -f 120.txt -r 800000000000000000000000000000:FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF -t 4 -k 250 -R -p ./bPfile.bin
[+] Version 0.1.20210306 K*BSGS
[+] Setting mode BSGS
[+] Setting 4 threads
[+] Setting k factor to 250
[+] Setting random mode.
[+] Opening file 120.txt
[+] Added 1 points from file
[+] Setting N up to 17593008128000.
[+] Init bloom filter for 1048576000 elements : 1797.00 MB
[+] Allocating 0.00 MB for aMP Points
[+] Precalculating 16778 aMP points
[+] Allocating 16000.00 MB for bP Points
[+] Reading 1048576000 bP points from file ./bPfile.bin
-k 250 is new factor of speed, 250 use some more of 17 GB of RAM.
But the speed will be huge:
Total 155574970875904000 keys in 180 seconds: 864305393755022 keys/s
864 Terakeys/s
Best regards!