We will try to beat the sun performance library using assembly
    language. However the Berkeley driver cannot be compiled using
    "-DDOESSL -lsunperf -L/opt/SUNWspro/SC4.0/lib/" option: the following 
    error will be shown:

    xolas0% gcc mm_contest.c -DDOESSL -lsunperf -L/opt/SUNWspro/SC4.0/lib
    Undefined                       first referenced
     symbol                             in file
    __s_cat                             /opt/SUNWspro/SC4.0/lib/libsunperf.a(dg
   emm.o)
    __s_cmp                             /opt/SUNWspro/SC4.0/lib/libsunperf.a(dg
   emm.o)
    getenv_                             /opt/SUNWspro/SC4.0/lib/libsunperf.a(in
   itialize_parallel.o)
    __s_copy                            /opt/SUNWspro/SC4.0/lib/libsunperf.a(dg
   emm.o)
    __c_conv_i                          /opt/SUNWspro/SC4.0/lib/libsunperf.a(in
   itialize_parallel.o)
    ld: fatal: Symbol referencing errors. No output written to a.out

    Can you tell us how to use the sunperf library?

    Li Ju.

Hi.  You might need some extra libraries on to make sunperf work.  Try
"-dalign -lsunperf -Bstatic -lM77 -Bdynamic -lF77 -lsunmath -lm" for a single
processor or
"-dalign -lsunperf -Bstatic -lM77 -Bdynamic -lF77_mt -lsunmath_mt -lm -mt"
for multiple processors after setting PARALLEL to some number > 1.  For more
info check out /opt/SUNWspro/READMEs/performance_library 

Parry

P.S.  If you're having problems with gcc you should try cc.