UPPSALA UNIVERSITET: Information Technology: Computer Systems

How I got my gray hair

• since 1999 Chaired professor in Computer Architecture at Uppsala University. See the report from the international evaluation panel KOF and check out my research group UART
• 1993-1999 chief architect for the high-end server engineering at Sun (the former Thinking Machies hardware group)
• 1988-1993  manager of the Computer Architecture research group (now part of the  CNA lab. ) at the Swedish Institute of Computer Science ( SICS),
• 1985-1988 staff member at Ericsson  Computer Science lab. I wrote a patent describing the new communication paradigm "Duper".
• 1984-1985 visiting scientist at MIT's Laboratory of Computer Science and participation in professor Arvind's Dataflow project.
• 1982-1983 I did my M.Sc. dissertation structuring a telephone exchange at Ericsson. I later became a member of the design team the new CPU  "APZ212" in Ericsson's large telephone exchange AXE -- a highly horizontal 32 bit beast that ran at a stunning 5 MHz(!).
• Research impact:
• built up a research group at SICS that produced many original research results: COMA, Simple-COMA, LH-locks, race-free networks, SimICS simulator.
• championed the new direction in computer architecture: Cache-Only Memory Architecture (and its braindead acronyme:-)
• wrote the first paper describing a more realistic implementation thereoff: Simple COMA.
• refined the Simple-COMA idea at Sun and was finally allowed to publish results from the first S-COMA machine: WildFire.
• Other places continuing the COMA research thread are: IACOMA at Illinois, Truman Joe et al at Stanford, PRISM architecture at IBM, ...
• Industrial impact:
• I partitipated in the design of the first incarnation of APZ-212, the high-end central processor of the Ericsson AXE-10 telephone exchange. 
• The Duper Protocol (later renamed DTM) is the base technology for two start-up companies: NetInsight and Dynarc.
• I participated in the design of Sun's mid-range servers 3000-6000, 3500-6500 and the 6800 families.
• I am the architect behind Sun's WildFire scalable server.
• I am the architect behind SunFire Link optical high-speed intercommect.
• I architected Sun's ASCI Turquouise architecture which was awarded $11M from the Department of Energy in their quest for 30 TFLOP by 2001 .

I got my  (MSc) in electrical engineering and my Ph.D in computer engineering from the Royal Institute of Technology  (KTH).

Full CV.