Management Manager

Geoffrey C. Carpenter Phone 914-***-****

***@******.***

http://www.fargos.net/gcc.html

Skills Summary

Primary Research and Development Activities

Commercial Unix programmer since 1983, but all products shipped since 1996 have been maintained as single source images that

also supported 32-bit Microsoft Windows (i.e., 9x/ME/NT 4/2000/XP). Primary R&D activities have been in distributed

applications, usually in the network and system management domain, with a focus on implementing high-performance multi-

threaded transparently distributed frameworks to enable the development of distributed, fault-tolerant applications.

Application Domains

Applications ranged from custom accounting/inventory control/billing systems, compilers (e.g., the CEDARS compiler for class

scheduling [done for U-M], G, OOG, [done for IBM], OIL2 [done for FARGOS Development, LLC]), network/systems

management platforms and technologies (XGMON, DRAGONS, RFC 1228, RFC 1592, SNMP Query Engine, 9076 SP1/SP2

system monitor/framework for distributed systems management, The Enterprise Management Protocol [TEMP]), to genetic

algorithms (VLAN configuration) and Byzantine fault-tolerant transaction monitors (FARGOS/SolidState). Designed and

implemented price feed layer (exchange interfaces, network distribution layer and client APIs that supported synthetic variables and

merged prices), shared memory variable API and utilities for statistics and control, and low-latency execution engines for high-

frequency options trading on several exchanges (ISE, CBOE, NASDAQ, NYSE, ARCA, OSE, SGX, Eurex, etc.)

In addition, designed and implemented a multitasking operating system for TRS-80 Model 1 s, implemented math kernels for Cray-

2 vector multiprocessors, dynamic loader and lightweight process library for SunOS.

Languages

Commercial products developed using BASIC, COBOL, FORTRAN, Cray-2 Assembler, Zilog Z-80 Assembler, Intel 386

assembler, C, C++, etc. Research projects developed using Pascal, Lisp, ML, BCPL, IBM 360/370 Assembler, Motorola 68000

assembler, Cray X-MP assembler and other obscure languages. Primary development language has been C++ (hundreds of

thousands of lines shipped in products).

Patents

U.S. Patent 6,748,416 Client-side method and apparatus for improving the availability and performance of network mediated

services

Resume of Geoffrey C. Carpenter

Experience

12/2006-2/2010 Volant Trading, LLC

99 Wall Street, 25th Floor

New York, NY 10005

As senior program, designed and implemented the performance-sensitive components for Volant's first few years

of operation. These included the low-latency (i.e., less than 70 microseconds), high-frequency execution

engines which embedded the logic and risk controls for options trading which were the firm's reason for

existence as well as the multicast price feed layer supporting synthetic prices and merging across multiple

exchanges (e.g., exchange connectivity, multicast distribution layer, client APIs, caches, and associated

utilities for logging, reports and replay for simulation). These frameworks were interfaced to ISE, CBOE,

NASDAQ, NYSE, ARCA, OSE, SGX, Eurex, etc. to perform the business of the firm. As team lead and

manager, oversaw development efforts for connectivity to PHLX, AMEX, etc. Implemented a clone of IBM's

ODE sandbox-based build environment with automated builds and multiple test environments. Designed and

implemented an API for shared memory statistics and control variables and related utilities to permit non-

intrusive management of applications with no impact on latency. Designed and implemented an efficient log

filter that could consume multiple files and streams in parallel, extract content of interest and display in

appropriate colors; this was used for all trader event GUIs and to drive background utilities like event-

specific sound generation. FARGOS/VISTA-based infrastructure was used for multicast forwarding and

remote execution of processes on trader workstations.

5/2003-present IBM Poughkeepsie Unix Development Lab

2455 South Road

Poughkeepsie, NY 12601

As a consultant, helped repair design defects in IBM s Reliable Scalable Clustering Technology, create models of

expected performance and provide education regarding C++ and algorithm design. Taught weekly class on

fundamentals of distributed algorithms with a focus on the origins of the technology being shipped by IBM.

One of several contributions for the scaling improvements required to support ASC Purple included

identifying the flaw in the group consensus protocol that caused stabilization times to be over an hour and

proposed the solution that brought the time to under 2 seconds.

7/99 present FARGOS Development, LLC

President and CEO

757 Delano Road

Yorktown Heights, NY 10598

Performed design, implementation and documentation of the FARGOS/VISTA (a high-performance, secure,

transparently distributed, architecture-neutral, multi-lingual, object-oriented applications infrastructure) and

FARGOS/SolidState (a FARGOS/VISTA-based Byzantine fault-tolerant transaction monitor) software

products. Managed and contributed to development efforts of various customer-specific applications.

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Resume of Geoffrey C. Carpenter

5/88 7/99 IBM T. J. Watson Research Center

P. O. Box 218

Yorktown Heights, NY 10598

Hired as Senior Associate Programmer, but received multiple promotions during the period of 1988-1993 until

promoted to highest possible position (Senior Programmer). Original job responsibility was the network

management software for the National Science Foundation Network backbone (both SGMP/SNMP agents and

management applications). Other research activities included configuration of virtual LANs by genetic

algorithms, an Internet access cartridge for the Nintendo SNES, fault-tolerant services, enterprise

management protocols, and pervasive computing. The XGMON and DRAGONS technologies were afforded

special case treatment and licensed to select IBM customers before being generally available as products.

IBM Research took the extraordinary step of creating NetSmith's, Ltd. as an independent firm dedicated to

selling DRAGONS and other companies licensed the DRAGONS technology suite for resale under their own

brands. Although an IBM Research employee and not working for an IBM product division, was able to

contribute a component to an IBM licensed program product during many years of employment. Examples

include:

1988 Over the course of two weeks, performed an emergency port of the SUN RPC library (because a 9-month

effort by another IBM employee had failed) and development of a BSD socket library for the VM TCP/IP

product. These efforts enabled the product tape to be created on time. Subsequently received an award for

contributions to the product.

1989 - XGMON (the network management technology developed for NSFNET in 1988) was accepted for release

on AIX V3 (as the Network Management/6000 LPP, although much of the functionality was removed by

the product division). Received award for contributing to the launch of the RISC System/6000 as well as

an Outstanding Technical Achievement award for XGMON. SNMP agents for the VM, MVS and OS/2

TCP/IP products were based on the SNMP agent developed for the NSFNET routers. The SNMP

Distributed Program Interface, originally invented for management of the Cylink ACSUs used in the

NSFNET, was the key to enabling the implementation of the SNMP agents for VM and MVS. The SNMP DPI

sub-agent technology was documented as a supported API on each IBM platform. The SNMP DPI protocol

was subsequently published in 1991 as Internet RFC 1228. Received award for contributions to initial

release of the MVS TCP/IP product.

1990 - Implemented the SNMP Query Engine to enable native SNMP support for NetView/390 (VM and

MVS). Without requiring modification, the SNMP Query Engine was also provided on other platforms

(AIX V3, AIX PS/2, AIX/370, 4.3BSD, etc.) and enabled multi-user XGMON clusters and bi-directional

XGMON/NetView communication. Received award for contributions to the various TCP/IP products for

VM, MVS, and OS/2. Implementation of the follow-on to XGMON, DRAGONS (Distributed Reliable

Architecture Governing Over Networks & Systems), began in September of 1990 after the design had been

submitted by an IBM product division in response to an Open Software Foundation Request For Proposal.

1991 In April of 1991, after 7 months of development and some 70,000 lines of C++ later, DRAGONS was

demonstrated in Munich to the Open Software Foundation's Distributed Management Environment evaluation

team. DRAGONS was selected and announced as the real-time framework of the OSF DME infrastructure

in September of 1991.

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Resume of Geoffrey C. Carpenter

1992 After other IBM employees had failed to deliver a working system despite a year of development, did the

emergency implementation of the system monitor and provided the infrastructure for distributed systems

management of the IBM 9076 SP1 parallel processor using DRAGONS. The DRAGONS Display

Manager was invented and developed during the first month of work. During the second month of

development, a supplemental employee assisted with the construction of some of the graphics classes that

enabled the real-time display of performance counters and hardware sensor values (such as fan speeds, 7-

segment LEDs, etc.). The two-month-long effort ultimately yielded a system with many more capabilities

than had been envisioned by the product division. Also corrected flaws in the design of the communications

protocol between the frame controllers and the management workstation.

1993 - Enhanced the SP1 system monitor to support new SP2 hardware and features.

5/87 4/88 Computing Center

The University Of Michigan

1075 Beal Avenue

Ann Arbor, MI 48109

As a systems programmer, implemented a dynamic loader for 4.3BSD UNIX (SunOS on Sun 3's), a library to

implement lightweight processes and a process checkpoint/restart facility.

1/86 12/86 Research Institute for Advanced Computer Science

NASA Ames Research Center

Moffet Field, CA 94035

As a consultant, was responsible for developing appropriate techniques for benchmarking Cray 2 supercomputers

and the implementation of ultra-high performance algorithms for use by the computational chemistry group

working on the NAS project. Most notable accomplishment was the implementation of the fastest matrix

multiplication kernel for the Cray 2. Designed and implemented a "microtasking" library for the Cray 2

before CRI decided to start their own development effort.

5/85 12/86 Magnetic Fusion Energy Computer Center at Lawrence Livermore

Los Alamos National Lab

San Diego Supercomputer Center

Numerical Aerodynamic Simulator project at NASA Ames Research Center

As a research assistant to Donald A. Calahan, designed and implemented several high-performance kernels for

the Cray 2 scientific library (e.g., scalar times a vector, vector times a vector, matrix times a matrix, etc.).

Designed and implemented benchmarking routines. Performed only available comparisons on the effect of

pseudo-banking on the Cray-2 before and after implementation of this hardware modification on the NAS

Cray 2. Various benchmarking experiments comparing algorithm performance between dissimilar

architectures, such as vector processors (e.g., Cray 2, Cray Y-MP) and hypercubes (e.g., nCUBE, Intel).

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Resume of Geoffrey C. Carpenter

5/85 2/86 Cravath, Swaine and Moore

Worldwide Plaza

825 Eighth Avenue

New York, NY 10019

In what has been stated to be one of the landmark court cases pertaining to "look-and-feel", was retained to

determine whether the source of one program was a derivative of another. Analysis results were explained

in court by Bernard A. Galler and were sufficiently compelling to win a summary judgment.

9/84 5/86 Independent research at the University of Michigan, Ann Arbor, MI.

9/84-12/84: Designed and implemented FARGOS (Fantastic And Really Great Operating System), a multi-

tasking operating system for TRS-80 model I microcomputers.

1/86-5/86: Implemented a Unix System III-based simulator of the TRS-80 Model I with multi-processor

extensions and enhanced FARGOS to support multiple processors, which became FARGOS/MP.

Related Publications

NOMS 2000: Remote Management of Narwhal Clients using TEMP

Globecom 99: Enabling the Management of Everything using TEMP

INET99: Increasing the Availability and Performance of Network-Mediated Services

USENIX LISA VI: Concurrent Network Management with a Distributed Management Tool

RFC 1228: SNMP-DPI

RFC 1592: SNMP DPI Version 2

Awards

IBM Outstanding Technical Achievement for the National Science Foundation Network (the network management software).

IBM Outstanding Technical Achievement for 9076 SP1 System Monitor (DRAGONS-based infrastructure and applications).

IBM Research Technical Group Award for contributions to TCP/IP (SNMP DPI, SNMP Query Engine to enable SNMP support

for Netview)

Education

M. S. in Computer Science and Engineering from the University of Michigan, Ann Arbor, Michigan (awarded May 1987).

B. S. in Computer and Communication Sciences from the University of Michigan, Ann Arbor, Michigan (awarded May 1985).

Citizenship

United States citizen.

Additional Information

The web page http://www.fargos.net/gcc.html provides links to several published papers and additional details about prior work.

The web page http://www.fargos.net/gccAwards.html documents some of the awards that were received in recognition of

technical accomplishments.

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