22nd Annual
October 27-29, 2014


We are pleased to welcome our PDL Consortium Member Companies
to the 22nd Annual Parallel Data Lab Workshop and Retreat.

Retreat Agenda

Monday, October 27: CMU/Bedford Springs Resort

8:30 am - 9:00 am Registration & Continental Breakfast
9:00 am - 9:30 am Welcome

Greg Ganger - Parallel Data Lab 2014 Retreat Welcome & Overview

9:30 am - 10:30 am Speaker

Onur Mutlu - Memory Systems: Opportunities and Challenges

10:30 am - 11:30 am Industry Poster Session
11:30 am - 1:45 pm Bus Ride to Bedford Springs & Lunch
2:00 pm - 3:30 pm Session I: Specializing Storage Implementations

Kai Ren - IndexFS: Scaling File System Metadata Throughput

Anuj Kalia - Using RDMA Efficiently for Key-Value Services

3:30 pm - 3:45 pm Break
3:45 pm - 6:00 pm Session II: Resource Scheduling Never Ends

Joy Arulraj - Let’s Talk About Database Systems for Non-Volatile Memory

Alexey Tumanov - TetriSched: Space-Time Scheduling for Heterogeneous Datacenters

Timmy Zhu - PriorityMeister: Tail Latency QoS for Shared Networked Storage

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

Short talks on new research activities, pushing for visits to posters.

Henggang Cui - Ingest-time Transformations in Time Series Database

Qing Zheng - BatchFS: Scalable Metadata Middleware for HPC File Systems

Saurabh Kadekodi - Opportunistic Cleaning in Shingled Disks

Hongyi Xin - Accelerating Iterative Map-Reduce Applications with GPUs

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

Tuesday, October 28: Bedford Springs Resort

8:15 am - 9:00 am Full Breakfast
Continental Breakfast
9:00 am - 10:30 am Session IV: Parameter Servers for ML

Mu Li - Scaling Distributed Machine Learning with the Parameter Server

Henggang Cui - Exploiting Iterative-ness for Parallel ML Computations

10:30 am - 10:45 am Break
10:45 am - 12:00 pm Session V: Mitigation and Disk Interfaces

Jin Kyu Kim - STRADS: Scheduling for Parallel Machine Learning

Garth Gibson - Channeling Eric Brewer’s TMRC Talk

12:00 pm - 1:30 pm Lunch
1:30 pm - 3:00 pm Socializing and Chat-filled Walk
Wii games room available 1:00 pm to midnight
3:00 pm - 4:30 pm Session VI: Robustness and Performance

Ben Blum - Automatic Selection of Preemption Points for Concurrency Testing

Hyeontaek Lim - Resource-Efficient Key-Value Store Designs

4:30 pm - 4:45 pm Break
4:45 pm - 6:15 pm Session VII: Better Distributed Services

Elie Krevat - Reactive Performance Problem Mitigation in Complex Services

Lianghong Xu - Partial Deduplication for Geo-replicated Document Databases

6:15 pm - 7:30 pm Dinner
7:30 pm - 8:30 pm Session VIII: Short Work-In-Progress Talks

Short talks on new research activities, pushing for visits to posters.

Thomas Marshall - ThomasDB: Automatic Incremental Computation for Big Data

Jinliang Wei - Managed Communication For Fast, Large-Scale, Iterative Data Analytics

Samira Khan - Transparent Consistency: A New Mechanism for Managing Hybrid Non-Volatile Memory Systems

Lei Cao - In-situ Free-analysis Mechanism for HPC Checkpoint

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

Wednesday, October 29: Bedford Springs Resort
Morning Workshop Talks
8:45am - 9:15am Full Breakfast
Continental Breakfast
9:15am - 11:30am Session IX: Watching, Trying, Scaling

Wolf Richter - Agentless Cloud-wide Monitoring of Virtual Disk State

Yixin Luo - Characterizing Application Memory Error Vulnerability to Optimize Datacenter Cost via Heterogeneous-Reliability Memory

Lin Xiao: ShardFS: Sharded Files with Replicated Directories

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


Have a look at last year's agenda.


Pittsburgh Accommodations

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 (Oct. 27 and 28) 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 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:

5308 Liberty Avenue
Pittsburgh, PA 15224
1-800-321-2211 - Reservations
412-683-3113 - Reservations
412-683-3133 - Fax
Ask for CMU/PDL rate
Parking - $17.88 / day

Reservation deadline: TBA
3315 Hamlet Street
Pittsburgh, PA 15213
412-681-1000 - Reservations
412-681-3022 - Fax
Group Code: PDL
Parking: included

Reservation deadline: Oct 19/14
3454 Forbes Avenue
Pittsburgh, PA 15213
412-683-2040 - Reservations
412-688-1986 - Fax
Ask for CMU/PDL rate
Parking: $18.00 per night

Reservation deadline: Oct 12/14

Pittsburgh / Oakland
3896 Bigelow Boulevard
Pittsburgh, PA 15213
412-621-2200 - Reservations
800-331-3131 - Reservations
412-621-0955 - Fax
Ask for CMU/PDLrate
Parking: included
Breakfast buffet included

Reservation deadline: Oct 12/14

5405 Fifth Avenue
Pittsburgh, PA 15232
412-441-4444 - Reservations
412-687-7312 - FAX
Code: PDL
Reservation portal for PDL Visitors:


$123 + taxes for Studio Suite
$133 + taxes for One Bedroom Suite
$143 + taxes for Two Bedroom Suite

Parking: included
Wi-Fi: Free

Reservation Deadline: Discount does not expire
100 Lytton Avenue
Pittsburgh, PA 15213
412-682-6200 - Reservations
412-681-4749 - Fax

Problems Contact: Sue Moser – 412-682-6200
Ask for CMU rate
Parking: included

Reservation deadline: Oct 8/14



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.

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 approximately $65 - $80 dollars one way (includes tip). The drivers do accept credit card payments. When you contact these services, they will most likely need your full flight info (date / time / flight number) and your cell phone number.

Airport Sedan Service (Larry Waite)
Advance reservations are required, ~$65.00 each way
Contact Larry Waite, 412-401-LIMO (5466)

Gateway Limo
Rates: $66.00 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.



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


Bedford Springs Resort

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, October 28 and return Wednesday, October 30. 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).

Click to view a map and print driving directions.

Bedford Springs' page of directions.

Directions from the Pittsburgh International Airport to Carnegie Mellon University.


2013 PDL Workshop Attendees

Chris Murphy, Actifio
Christopher Provenzano, Actifio
Sorin Faibish, EMC
Erik Riedel, EMC
Stephen Smaldone, EMC
Robert Wipfel, Fusion-io
Nisha Talagala, Fusion-io
Manisha Jain, Google
John Wilkes, Google
Yoshi Masuoka, Hitachi Ltd.
Kenta Shiga, Hitachi Ltd.
Kim Keeton, HP Labs
Cameron Bahar, Huawei Technology
Tao Hui, Huawei Technology
Haipei Zhu, Huawei Technology
Scott Hahn, Intel Corporation
Michael Kozuch, Intel Corporation
Ran Kurup, Intel Corporation
Gary Grider, Los Alamos National Laboratory
Carolyn Connor, Los Alamos National Laboratory
Rich Draves, Microsoft Research
Amar Phanishayee, Microsoft Research
Nitin Agrawal, NEC Labs
Cristian Ungureanu, NEC Labs
Jerry Fredin, NetApp Inc.
Jeff Heller, NetApp Inc.
Jiri Schindler, NetApp Inc.
Daniel Tennant, NetApp Inc.
Stephen Poole, Oak Ridge National Laboratory
Roger MacNicol, Oracle Corp.
Akshay Shah, Oracle Corp.
Ashish Batwara, Samsung Semiconductor Inc.
Bruce Moxon, Samsung Strategy and Innovation Center
Yang Seok Ki, Samsung Electronics
Kevin Gomez, Seagate Technology
Martin Furuhjelm, Seagate Technology
Petros Efstathopoulos, Symantec Corporation
Vish Janakiraman, Symantec Corporation
Jorge Guerra, VMware
Abhijit Paithankar, VMware
James Malina, Western Digital
Jie Yu, Western Digital



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




© 2020. Legal Info.
Last updated 4 March, 2015