Hi Aryan,
not a mentor, just wanted to let you know that you are in the correct
place to discuss this :) I cc'd the mentors of this project, but please
be patient, mentors are busy people.
Best regards,
Josef
On 2/23/26 4:03 PM, Aryan Jain via Gcc wrote:
Hi,
Just wanted to follow up on this in case it got buried! Or if there is an
alternative mode of communication which is preferred!
Thanks,
Aryan.
Sent from Outlook for iOS<https://aka.ms/o0ukef>
________________________________
From: Aryan Jain <[email protected]>
Sent: Saturday, February 21, 2026 11:57:17 PM
To: [email protected] <[email protected]>
Subject: GSoC 2026: Interest in libgomp Optimizations for Scheduler-Guided
OpenMP Execution in Cloud VMs
Hello,
My name is Aryan Jain, and I am a computer science student at Nanyang
Technological University (Singapore). I am writing to express my
interest in contributing to the "Libgomp Optimizations for Scheduler
Guided OpenMP Execution in Cloud VMs" project as a GSoC 2026
contributor.
I have been preparing by going through the following steps:
- Watched Himadri's FOSDEM 2026 talk on the project and read through
the slides. I found the Phantom vCPU concept and the pv-barrier-sync
approach very interesting, particularly how paravirtualized scheduling
insights can inform per-thread spin vs. block decisions at barriers.
- Successfully checked out the GCC source from Git and built it from
source using --disable-bootstrap. Ran the testsuite.
- Wrote and compiled a few basic OpenMP programs with -fopenmp to
familiarize myself with parallel regions, barriers, and environment
variables like OMP_NUM_THREADS and OMP_WAIT_POLICY.
- Browsed the libgomp source code, specifically parallel.c
(gomp_resolve_num_threads), env.c (environment variable parsing), and
the barrier implementation.
My background is in C/C++ systems programming. I have experience with
concurrency, low-latency systems design, and GPU programming (CUDA on
NVIDIA A100s). I am comfortable working with large codebases and have
a solid understanding of OS scheduling concepts.
I have a few questions to help me get started:
1. Are there any additional papers or resources beyond the FOSDEM talk
that would help me understand the Phantom Tracker mechanism in more
depth?
2. Is there a good starter task or small bug fix in the libgomp area
that I could work on to familiarize myself with the contribution
workflow?
3. For the GOMP_DYNAMIC_POLICY deliverable , would the paravirtualized
scheduling information come through an existing kernel interface
(e.g., /proc or a hypercall), or is that part of what needs to be
designed?
I look forward to engaging with the community and would appreciate any guidance.
Best regards,
Aryan Jain.
