If your kernel is written in gas assembler, you can tell the tester
and timer that by setting the appropriate compiler and flag macro on
the command line. For single precision types, these macros for gemmK
are called SMC and SMCFLAGS, respectively, and they are
DMC and DMCFLAGS for double precision routines.
For instance, to test a DGEMM code written in assembler, requiring
a 16 blocking factor, you'd issue:
make ummcase pre=d mmrout=CASES/myassembler.c nb=16 \
DMC=gcc DMCFLAGS="-x assembler-with-cpp"