2. Alex Chiang Hewlett-Packard
Itanium Servers and 3pm Naps (How to Stop Worrying and Love Working for the Man)
Alex Chiang
Hewlett-Packard

3. “This slide deck template is shiny.”
Alex Chiang
Hewlett-Packard Company

4. I mean, really really shiny.

5. Who the heck are those guys (and where are they)?

6. A Brief Intro Born and raised in NJ
Graduated University of Illinois, Urbana-Champaign, 2002
Worked for HP ever since
Spent worst year of my life in Dallas, TX
Now living in Ft. Collins
Met John at GunksFest 2000
19 September September 2018

7. Your Professor
19 September September 2018

8. Outline Itanium aka IA64 aka IPF (but not Itanic!)
Rage – an offline hardware diagnostic
HP-UX (but only if you want)
When to sleep in class
(and when to pay attention)
Surviving at $MEGAGLOBALHYPERCORP
Continuing education
Q & A
we can go as deep or broad as you want – let me know (ie, I hate boring, irrelevant talks and so should you!)
19 September September 2018

9. IA-64 Principles Explicitly parallel: Enhanced ILP : Fully compatible:
(I stole this slide)
Explicitly parallel:
Instruction level parallelism (ILP) in machine code
Compiler schedules across a wider scope
Enhanced ILP :
Predication, Speculation, Software pipelining, ...
Fully compatible:
Across all IA-64 family members
IA-32 in hardware and PA-RISC through instruction mapping
Inherently scalable
Massively resourced:
Many registers
Many functional units
19 September September 2018

10. IA-64 Architecture: Explicit Parallelism
Parallel Machine
Code
Original Source
Code
Compile
Compiler
Hardware
multiple functional units
IA-64 Compiler Views Wider
Scope
More efficient use of
execution resources . . . .
Increases Parallel Execution

11. IA-64 System Software Stack: OS Boot
Operating System Software
OS boot
EFI
System Abstraction Layer (SAL)
IA-32 BIOS
Access to
platform
resources
Processor Abstraction Layer (PAL)
Processor (hardware)
Platform (hardware)
Reset, machine checks
THIS and NEXT THREE slides show how IA-64 system software stack works.
THIS SLIDE
Shows how an IA-64 OS boots and what each of the system software components are.
First Processor and platform hardware are shown.
Reset event fromplatform causes the processor abstraction layer (PAL) to
initialize and self-test processor, and then
call SAL that
initializes and tests platform hardware
when SAL is done
Extensible Firmware Interface loads OS boot loader and boots OS
PAL is firmware provided by Intel.
SAL and EFI are provided by platform OEM
OS is provided by OS vendors. the OS
GO TO NEXT SLIDE
19 September September 2018

12. HP Integrity Servers From single CPU up to 256 CPUs, 2 TB of memory
nPars give electrical isolation
vPars allow multiple OS instances
Run 4 OSes at the same time, in the same box
Reliability, Availability, Scalability (RAS)
19 September September 2018

13. Rage Based on Linux, instrumented for error detection
Monitor
Modified Linux Kernel UI
Rage
Shell
CPU
Exerciser
Memory
I/O
I/O Driver
Libraries
Other
Apps
Open Source Code HW FW
Boot Loader
Legend:
Modified by SHML
SHML Developed
Vendor Provided
Partner Provided
Based on Linux, instrumented for error detection
Very small OS footprint (~10 MB) & boots very quickly (~ 5 min.)
Ideal for transient & latent hardware problems
User friendly interface, produces easy to interpret errors
Implements a totally independent error monitor, persists even when OS hangs or HW faults
Same Hardware exercisers for HP-UX, Linux, Windows & OpenVMS servers
19 September September 2018

14. GunksFest 2000 Let your brain relax a bit…
19 September September 2018

15. Alex’s College Cliffs Notes
Classes to care about:
Writing
Data Structures
Computer Architecture
Operating System design
Leadership development
Writing, writing, writing
19 September September 2018

16. Data structures that count
Arrays and linked lists
Queues and stacks
Hashes (does not apply to C)
That’s it.
Learn about trees, skiplists, graphs
and forget them as quick as you can
Understand what running time implies (big-O)
but you’ll never need to calculate them post-college
19 September September 2018

17. Computer Architecture and OS Design
CPU architecture
cache hierarchy
pipelines and all their implications
Virtual memory
TLBs, page tables
Everything else…
19 September September 2018

18. Writing, leadership, and more writing
Good writing shows clarity of thought
Learn enough grammar to be correct
but not enough to be annoying
Unintelligible, muddy writing is worthless
Practice, practice, practice
Leadership courses teach you how to influence others with a high level of emotional intelligence
19 September September 2018

19. Plastics?
19 September September 2018

20. Quickie interviewing tips
Clean up your resume
Think out loud
Learn what a pointer is
reverse a string. now do it in place.
add a node to a linked list. now delete it.
Show some enthusiasm!
For some reason most people seem to be born without the part of the brain that understands pointers. – Joel Spolsky
19 September September 2018

21. PC Load Letter?!??!!!
19 September September 2018

22. Life in the Matrix Managing your manager Live in the whitespace
Effective networking
Work/Life balance
Own your career
Dealing with BS
19 September September 2018

23. Relevancy and you Always keep your resume current
Program for fun (and ship it!)
Volunteer with interns
Mentor a student
Speak at seminars
19 September September 2018

24. Recommended reading, dead trees
19 September September 2018

25. Recommended reading, electrons
Joel Spolsky
Paul Graham
Raymond Chen
Steve Yegge
Bruce Schneier
Your blog goes here (practice, practice, practice)
19 September September 2018

26. Q & A

27. fin.