Operating principles of MultiKron II performance instrumentation for MIMD computers
1994
The MultiKron n design is an enhanced version of our earlier MultiKron performance instrumentation chip.They are both 179 pin chips, and although pin compatibili- ty is close they are not 100% compatible.The MultiKron n has a longer TRACE sam- ple, 20 bytes vs 16, to allow larger user data and Timestamp fields.The 16 counters for resource utilization measurements are now writable, to allow for "virtual" use, and their programming interface has changed to allow more options.Although designed for a 64- bit processor bus interface, an internal holding register provides for 32-bit mode operation.