The Forte Developer compiler specifies the -xchip=ultra3 / xtarget-ultra3 options. Do I need to recompile for the UltraSPARCIII processor?
32-bit drivers The UltraSPARCIII processor only runs a 64-bit Solaris kernel. If your driver is a 32-bit driver, you will need to recompile your code to produce a 64-bit driver to be able to run on an UltraSPARCIII based machine. Several whitepapers are available with information on writing 64-bit drivers. 64-bit drivers You do NOT need to recompile your 64-bit driver code to run on an UltraSPARCIII processor. Because the bus architecture of UltraSPARCIII based systems has changed, verify that the driver operates correctly on an UltraSPARCIII system. Platform-specific compiler options The Forte Developer Compiler provides several options which allow you to accurately describe the target computer hardware (-xtarget, -xchip, -xcache, etc). When program performance is critical, the proper specification of the target hardware could be very important. However, for most programs and older SPARC processors, the performance gain is negligible. For portability reasons, do not use platform-speci
