llama.cpp

98819068 - metal : few-row MMA mat-mul for the remaining src0 types (#30065)

metal : few-row MMA mat-mul for the remaining src0 types (#30065) The generic few-row MMA kernel works for any type with a 16-weight dequantizer, so it now also takes BF16, Q1_0, Q2_0, MXFP4, Q2_K, Q3_K, TQ2_0 and the IQ types. Each type starts at the row count where it beats the current kernels on an M3 Ultra: 5 rows for TQ2_0, 4 for BF16, 3 for MXFP4, Q2_0, Q2_K and IQ4_NL, and 2 for the others. test-backend-ops perf -o MUL_MAT, m=4096, k=14336, M3 Ultra, time of this change over master (mean of two interleaved runs each): 0.23 to 0.98 from the threshold to 8 rows, 0.24 to 0.33 at 9 to 16 rows, and 0.99 to 1.01 at 1 and 512 rows.