27th Annual
November 4-6, 2019


We are pleased to welcome our PDL Consortium Member Companies
to the 27th Annual Parallel Data Lab Workshop and Retreat.


Monday, November 4: CMU/Bedford Springs Resort
8:30 am - 9:00 am Registration & Continental Breakfast
9:00 am - 9:30 am Welcome -- SINGLETON ROOM

Greg Ganger - Parallel Data Lab 2019 Retreat Welcome & Overview

9:30 am - 10:30 am Speaker -- SINGLETON ROOM

Brandon Lucia – Reliable Intermittent Computer Systems

10:30 am - 11:30 am Industry Poster Session -- ROBERTS HALL ATRIUM
11:30 am - 1:45 pm Bus Ride to Bedford Springs & Lunch -- FREW STREET
2:00 pm - 3:45 pm Session I: There’s a Code for That

Jack Kosian - Resilient ML Inference via Erasure Coding

Saurabh Kadekodi - Gotta have HeART: Improving Storage Efficiency by Exploiting Disk-reliability Heterogeneity

3:45 pm - 4:00 pm Break -- CONSTITUTION HALL
4:00 pm - 6:00 pm Session II: The More You Know

Qing Zheng - DeltaFS: Reforging Filesystems For Monster-Scale Computing

Anuj Kalia - Efficient RPCs for Datacenters, and Applications to NVM

Phil Gibbons - Prescriptive Memory

6:00 pm - 7:30 pm Dinner -- EISENHOWER BALLROOM
7:30 pm - 8:30 pm Session III: Short Work-in-Progress Talks

Ankush Jain - Distributed Range Queries With Low Write Amplification

Francisco Maturana - Convertible Codes: Efficient Conversion of Coded Data in Distributed Storage

Daniel Berger - Caching Research Myths Busted and Lessons Learned

PDL Students - 1-minute Intros of Non-speaker Poster Presenters

8:30 pm - 10:30 pm Reception/Poster Session I -- COLONNADE BALLROOM

Tuesday, November 5: Bedford Springs Resort

8:15 am - 9:00 am Full Breakfast -- CRYSTAL DINING ROOM
Continental Breakfast
9:00 am - 10:30 am Session IV: More Efficient ML

Angela Jiang - Accelerating Deep Learning by Focusing on the Biggest Losers

Michael Kuchnik - Progressive Compressed Records: Taking a Byte Out of Deep Learning Data

10:30 am - 10:45 am Break -- CONSTITUTION HALL
10:45 am - 12:15 pm Session V: Getting it Right with New Storage Tech

Rajat Kateja - Efficient Redundancy for Direct Access NVM Storage

Abutalib Aghayev - Adopting LSM-Trees to Zoned Storage Devices

12:15 pm - 1:30 pm Lunch -- EISENHOWER BALLROOM
1:30 pm - 2:45 pm Socializing and Chat-filled Walk -- HOTEL GROUNDS
Wii games room available 1:00 pm to midnight --
2:45 pm - 4:15 pm Session VI: Specializing for NVM

Charles McGuffey - Semi-Asymmetric Parallel Graph Algorithms for NVRAMs

Thomas Kim - CANDStore: Cheap Available NVM-based Distributed Storage

4:15 pm - 4:30 pm Break -- CONSTITUTION HALL
4:30 pm - 6:00 pm Session VII: Iconic Aperitifs

Jason Yang - C2DN: How to Code on the Edge for Content Delivery

Dominic Chen - Hardware-Accelerated Control-Flow Integrity

Abutalib Aghayev - File Systems Unfit as Distributed Storage Backends: Lessons from 10 Years of Ceph Evolution

6:00 pm - 7:30 pm Dinner -- EISENHOWER BALLROOM
7:30 pm - 8:30 pm Session VIII: Short Work-In-Progress Talks

Qing Zheng - Fast Data Shuffling on Manycore Processors

Ziqi Wang - OverlayTM: Building a Faster Serializable HTM with Multiversioned Page Overlays (MPO)

Ellango Jothimurugesan - ML Under Concept Drift

Jinliang Wei - Training Larger Models on TensorFlow w/o Additional GPUs

8:30 pm - 10:00 pm Reception/Poster Session II -- COLONNADE BALLROOM

Wednesday, November 6: Bedford Springs Resort
Morning Workshop Talks
8:45am - 9:15am Full Breakfast -- CRYSTAL DINING ROOM
Continental Breakfast
9:15am - 11:30am Session IX: Close Strong!

Daniel Berger - System Challenges of Bringing ML to Edge Caches

Andrew Chung - Safer, Easier, and Lower-cost: A Whole New World of Resource Management with Inter-job Dependencies

Pratik Fegade - End To End Compiler Optimizations for Microservice Based Applications

Afternoon Feedback, Departure
11:30am - 1:15pm Lunch and Industry Feedback
1:30pm Buses depart for Pittsburgh Airport & CMU (one in each direction)
4:00pm Arrive at Airport
Arrive at CMU



If you are planning to arrive in Pittsburgh over the weekend preceding the retreat, PDL has several rooms on hold at each of the hotels listed below. When you call the hotel to make reservations, tell them that you'd like a room booked for the PDL Retreat (or quote the appropriate code listed below). You may also book extra nights at the preferred rate if you request them at the time of your booking.

Your room reservations for the nights of the Retreat itself (Nov. 4 and 5) will be taken care of by us, so you will only need a room at one of the following hotels if you are arriving early and/or staying past the Retreat.

Please make your reservations as early as possible, as there are several Pittsburgh events that may also make rooms scarce.

TIP: There have been times when your corporate rate beats the rate we were able to secure.

Accommodations are available at the following hotels:

120 S Whitfield St
Pittsburgh, PA 15206
Booking code is good for 15% off of best available rate. Online bookings only.

Reservation deadline: none

Booking Link
Booking Code: PDLRETREAT
5308 Liberty Avenue
Pittsburgh, PA 15224
1-800-321-2211 - Reservations
412-683-3113 - Reservations
412-683-3133 - Fax

$119.00 + tax
Ask for CMU/PDL rate

Reservation deadline: October 7, 2019

Booking link

3315 Hamlet Street
Pittsburgh, PA 15213
412-681-1000 - Reservations
412-681-3022 - Fax
2 queens $109 + taxes
Parking: $5/day
Breakfast buffet included

Reservation deadline: Oct 22, 2019

Booking code: PDL Retreat
3454 Forbes Avenue
Pittsburgh, PA 15213
412-683-2040 - Reservations
412-688-1986 - Fax
Parking: $10.00/day

Reservation deadline:

Booking Link

329 Technology Drive
Pittsburgh, PA 15219
1-412-621-0880 - Reservations

$149.00 + tax
Includes cooked to oder breakfast.
Parking: $18.00/day
Reservation deadline: none

Booking Link
Booking Code: 000011504
1111 Airport Boulevard
Pittsburgh, PA 15231

Booking code: 33514 at any time for 15% off posted rate.
3341 Forbes Avenue
Pittsburgh, PA 15213
412-621-5600 - Reservations
800-331-3131 - Reservations
412-621-5700 - Fax
Parking: $20.00/day
PDL shuttle service available.

Reservation deadline:

Booking Link
3896 Bigelow Boulevard
Pittsburgh, PA 15213
412-621-2200 - Reservations
800-331-3131 - Reservations
412-621-0955 - Fax
Parking: $20.00/day
Breakfast included
PDL shuttle service available.

Reservation deadline:

Booking Link
5405 Fifth Avenue
Pittsburgh, PA 15232
412-441-4444 - Reservations
412-687-7312 - FAX

$99 + taxes for Studio Suite
$109 + taxes for One Bedroom Suite
$119 + taxes for Two Bedroom Suite

Parking: included
Wi-Fi: Free

Reservation Deadline: none

Reservation portal for PDL Visitors
100 Lytton Avenue
Pittsburgh, PA 15213
412-682-6200 - Reservations
412-681-4749 - Fax
$129.00 + tax
Parking: $10.00/day
PDL shuttle service available.

Reservation deadline: Oct 13, 2019

Group Code: PDL Retreat
Booking Portals:

Block Code 11/3: 11036841RT
Block Code 11/6: 11066841RE



Once in Oakland, most of the hotels we have listed above have shuttle transportation to CMU available. Please request that you be dropped off on the west end of Frew Street, then refer to the attached map for directions to the Singleton Room in Roberts Hall.

OAKLAND AREA Hotel Shuttles and CAB / LIMO Info

Getting to and from the Airport

Please make your own transportation arrangements from the airport to your hotel / CMU. There are several options available for getting to and from the airport:

Rental Car: Available at the airport from all the major companies (not really recommended for the Retreat since we depart CMU to go to a resort that is about two hours away).

Taxi Service (~$60 each way)

Limousine Service

The following driver services cost ~$65 dollars one way (includes tip). The drivers do accept credit card payments. If you want Karen to arrange this for you, please make sure she has your full flight info (date / time / flight number) and your cell phone number.

Airport Sedan Service (Larry Waite)
Advance reservations are required, ~$60 each way
Contact Larry Waite, 412-401-LIMO (5466)

Gateway Limo
Rates: ~$60 from the airport to Downtown, Oakland, Shadyside, and Squirrel Hill (sedan). The rate for a van, a 14 passenger vehicle, is $78.00 per hour. Mention CMU when making a reservation.
Call the office at 412-782-5800 (phones answered 24/7) for reservations.
Email: amydemeri@comcast.net

Harper's Transportation
Harper1084@verizon.net - 412-531-1940

Classy Cab – SUV cabs
Phone 412-322-5080
Fax 412-322-5085

Supershuttle - book online

Airport Shuttle (PATransit 28X - Airport Flyer) ($3.75 each way, exact change)
Leaves CMU from the corner of Forbes and Morewood Avenues every 20 minutes starting at 4:25 a.m., last shuttle at 10:55 p.m. Shuttle leaves the airport from the arrivals level, door #6, starting at 5:20 a.m. approximately every 30 minutes.

Pittsburgh Airport Ride Sharing Apps

Getting to CMU from Your Hotel

Most of the hotels have shuttle transportation to CMU available. This is NOT a direct shuttle to CMU and will make other stops in Oakland based on customer needs. If you do choose to use the hotel shuttle, please request that you be dropped off at the RMCIC Building.



Directions to the Singleton Room in Roberts Hall

The Singleton Room, surrounded by the Seagate Technology Atrium, is located on the fourth floor of Roberts Engineering Hall (REH). REH is behind and connected to Hamerschlag Hall and may be approached from two directions:

Through Hamerschlag Hall
Enter the front doors of Hamerschlag Hall from the campus mall. (Hamerschlag is the building with the cupola on top at the west end of campus.) Proceed to the staircase or the elevator at the end of HH first floor. Go down to level "B." Follow signs to REH. You will enter the Atrium next to Singleton.

From outside REH
Pass in front of Scaife Hall and follow the sidewalk on to the covered walkway above the service road. Proceed through the door into REH. The Singleton room will be on your left.

Campus Maps



While we assume most of you will use the shuttle PDL will provide, there are parking machines on Schenley Drive, Frew Street, and Tech Street which are all very near to Roberts Hall. They accept currency and credit cards; it is $3.00 / hour and uses your license plate as the timing factor.There is also parking in the RMCIC Building Garage - P19 on the general campus map (closest) or the East Campus Garage - P7 on the map (further walk but more familiar to some of our guests). Some past attendees have also used the parking lot at the nearby Carnegie Museum (also shown on the map).

If you park in one of the above mentioned areas, particularly Schenley Drive, Frew Street, or Tech Street, please see this map for the Roberts Hall entry location/drop-off point or this map of campus.

Other Handy Maps


Bedford Springs Resort is a four season, historically significant destination located on 2,200-acres. It began welcoming guests over 200 years ago when the mineral springs of Bedford Springs, PA became known as a source of rejuvenation. The resort is approximately 90 miles east of Pittsburgh.

CMU Retreat attendees and guests will travel to Bedford Springs on Monday, November 4 and return Wednesday, November 6. We will provide bus transportation to the resort on Monday and back to Pittsburgh and the Pittsburgh International airport on Wednesday afternoon.

Participants of the retreat will be members of the PDL Consortium and invited guests. Information on becoming a member of the consortium is available from Karen Lindenfelser, Bill Courtright (PDL Executive Director), or Greg Ganger (PDL Director).

Directions to Bedford Omni Springs Resort



PDL Administrative Manager
School of Computer Science
Carnegie Mellon University
4720 Forbes Avenue - CIC 2209
PITTSBURGH, PA 15213-3891
VOICE: (412)268-6716
FAX: (412)268-3010

Director, Parallel Data Laboratory
Electrical and Computer Engineering
Carnegie Mellon University
4720 Forbes Avenue - CIC 2208
PITTSBURGH, PA 15213-3891
VOICE: (412)268-1297
FAX: (412)268-6779

PDL Executive Director
Carnegie Mellon University
4720 Forbes Avenue - CIC 2210
PITTSBURGH, PA 15213-3891
VOICE: (412) 268-5485
FAX: (412)268-3010




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Last updated 5 November, 2019