Change -t 2 to the number of physical CPU cores you have. For example if your system has 8 cores/16 threads, use -t 8.
Change -ngl 26 to the number of layers to offload to GPU. Remove it if you don't have GPU acceleration.
If you want to have a chat-style conversation, replace the -p <PROMPT> argument with -i -ins, you can use --interactive-first to start in interactive mode.
Compatibility
I have uploded bothe the original llama.cpp quant methods (q4_0, q4_1, q5_0, q5_1, q8_0) as well as the new k-quant methods (q2_K, q3_K_S, q3_K_M, q3_K_L, q4_K_S, q4_K_M, q5_K_S, q6_K).
Please refer to llama.cpp and TheBloke's GGML models for further explanation.