
                 ---------------------------------------------
                 TINKER Notes for SGI R4000-based Workstations
                 ---------------------------------------------

          This subdirectory contains a set of script files that can
          be used to build the TINKER program package on a Silicon
          Graphics workstation under IRIX 5.3.

          In order to improve performance on R4000/R4400 series CPUs
          the -mips2 compiler flag has been added to the compile.make
          and link.make scripts. This flag is incompatible with the
          earlier R3000 CPUs, and should be removed if the package is
          being built for an R3000 machine.

          Note that due to a bug in the optimizer of SGI's compiler
          the routine trifix in embed.f must be compiled with the -O1
          flag instead of -O.

          If some or all of the executables fail via a segmentation
          fault or mystereous loader error, check the limits for your
          processes by issuing the "limit" command at a C shell prompt
          (or similar under other shells). On many workstations these
          limits are set to quite small values for ordinary users. To
          eliminate the problem issue the following three commands:

                         limit filesize unlimited
                         limit datasize unlimited
                         limit stacksize unlimited

          These same commands can also be put in your .cshrc file or
          equivalent startup file to be run at login time.

