![]() Please tell me what should be changed in order to optimize this :)Ī reasonable minimum target is to launch a total number of threads of at least # of SM * 2048. Is it the right way, calling multiple times the kernel ? If not, I rerun the kernel with an updated nonce offset. After the kernel call, I run cudaDeviceSynchronize and I check if the global variable is set to 1. If one thread finds the right nonce, a global variable is set to 1 then the other threads return. One thread does one hash as it can’t be parallelised. What I’m doing is that I run a for loop which starts a kernel and processes hashes. I’m pretty sure I can optimize this but I don’t know how. I created the same program but for cpu and I can do over 6 millions hashes in a second. You enter a string then it finds an associated nonce prepended to the input string matching a sha256 with some number of zeros at the beggining.įor example if I want a difficulty of 6 and I put “moffa13” as input string, the program returnsĦ253010moffa13 which has this associated hash :Ġ000002dece0c0f5791305f53bfd5116966ea97a9604984cbb50891f243e5641 (6 zeros before) Default chunk size is 4096 bytes.I’m new to cuda development, I tried to do a program which illustrates the bitcoin mining difficulty. This comes in useful when processing very large files to avoid having to read the entire file into memory all at once. chunk_size=4096 - Integer specifying the chunk size to use (in bytes) when reading the file.See filehash.SUPPORTED_ALGORITHMS for the list of supported hash / checksum algorithms. hash_algorithm='sha256' - Specifies the hashing algorithm to use.The FileHash constructor has two optional arguments: This format is the format used by programs such as the sha1sum family of tools for generating checksum files. Returns a list of tuples where each tuple contains the filename and a boolean value indicating if the calculated hash matches the expected hash.įor the checksum file, the file is expected to be a plain text file where each line has an entry formatted as follows: ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |