I saw the number of kangaroos in the counter (probably 2^33.08), but I do not remember, because after turning off the server to change the save file - again I see 2^inf only, so I
Wow 2^33.08 kangaroo ! With DP23, the overhead is still a bit large.
Why do you turn off the server ? The work file is too big ?
If I was you, I would reduce the grid size of the GPUs and/or reduce the GPU_GRP_SIZE to 64.
By reducing the gridx and gridy by 2 and the GPU_GRP_SIZE to 64 you will have 2^30 kangaroo and will be nice with dp23.
You will probably loose in performance. Make a test on a single GPU of each type to see what is the performance with reduced grid and GPU_GRP_SIZE.
You can also engage less machine and try to see what is the best trade off.
Yes if you turn off the server, at the reconnection, the kangaroo are not counted, i will fix this.
Jean_Luc, I want to look at the table which is saved to workfile. But as I understood, only 128bit are saved for X-coordinate and 126bit for distance (together with 1 bit for sign and 1 bit for kangaroo type).
Anyway, what is the easiest way to receive the whole table in txt format. I easily could read from binary file the head, dp, start/stop ranges, x/y coordinates for key. After that the hash table is saved with a lot of 0 bytes....
Can you just briefly describe the hash table structure which is saved to binary file?
Yes the 0 are the HASH entry header, if you have lots of 0, the hash table is not very filled.
As mentioned above, you can have a look at the HashTable::SaveTable() function to understand the format.
