Supercomputers/Systems/PARAM Ganga
India · operational · hpc
PARAM Ganga
Operated by IIT Roorkee at IIT Roorkee Campus .
Phase 1 seed dataset, compiled by hand. These rows were built from public operator, laboratory and vendor sources. A mechanical second-reader pass has since fetched every cited source: 1092 of 1153 systems have a readable citation that names them, and 40 are genuinely weakly sourced. Every claim carries its source and a confidence tier. Treat anything below verified as a lead, not a citation.
Measured performance
- Rmax
- -
- Rpeak
- 1.66 PFlop/s
- Rmax ÷ Rpeak
- -
- Cores
- -
- Power
- -
- Per watt
- - GF/W
Figures are as last publicly reported for the configuration described below, not a live measurement. Where a system was upgraded in place, the post-upgrade configuration is shown and the earlier one appears in the timeline.
What this machine is made of
One row per supplier relationship. “Supplier at build” is the company that shipped the part at the time; where that company has since been acquired, the parent it rolls up to today is shown beside it. That distinction is what makes ticker-level aggregation possible across a thirty-year dataset.
| Role | Part | Supplier at build | Quantity | Confidence | Source |
|---|---|---|---|---|---|
| Integrator | - C-DAC Rudra servers with Trinetra interconnect, 312 CPU, GPU and high-memory nodes | C-DAC | - | Reported | swarajyamag.comcivilsdaily.com |
| Accelerator | NVIDIA Tesla V100 Accelerators CUDA (Volta GV100) · 5,120C · 1.53 GHz · 12 nm · 300 W NVIDIA Tesla V100 GPUs | NVIDIA | - | Reported | civilsdaily.com |
| CPU | - Intel Xeon Cascade Lake | Intel | - | Reported | civilsdaily.com |
| Interconnect | NVIDIA InfiniBand HDR Interconnect Fat tree or dragonfly+ · 200 Gb/s per port · About 0.6 microseconds Mellanox HDR InfiniBand | NVIDIA | - | Reported | civilsdaily.com |
| Operating system | CentOS Operating systems Linux distribution, RHEL-compatible rebuild · Open source, community-maintained CentOS 7.x | The CentOS Project | - | Reported | civilsdaily.com |
The read
A 1.66 PFlop/s petascale system at IIT Roorkee, commissioned by C-DAC under phase 2 of India's National Supercomputing Mission: 312 CPU, GPU and high-memory nodes with Intel Xeon Cascade Lake CPUs and NVIDIA Tesla V100 GPUs on Mellanox HDR InfiniBand, with a Lustre file system and CentOS 7.x, built on C-DAC's Rudra servers and Trinetra interconnect with substantial components made in India. Press coverage dates the inauguration as 7 March (Swarajya) or 9 March 2022 (Civilsdaily), so only the month is recorded. Both sources are press coverage of the government release and give the 1.66 PFlop/s figure as a theoretical total, and the PIB and DCD pages could not be fetched, so the tier is reported. No TOP500 entry was found.
Timeline
- 2022-03 First operational source
Site & facility
Change history
- 2026-10-01 Added PARAM Ganga (IIT Roorkee)
Source check
We fetched this system's own citations and recorded whether each page actually mentions it. This is a corroboration signal, not a fact check, and it is published so you can see how well the sourcing holds up rather than take it on trust.
| Cited source | Result | Found on the page |
|---|---|---|
| swarajyamag.com | names system only | - |
| civilsdaily.com | names system and part | NVIDIA Tesla V100, NVIDIA InfiniBand HDR, CentOS |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.
Further reading
Operating a supercomputer
Acceptance testing, why "installed" and "in production" are six months apart, and the machine lifecycle.
Inside a node
Latency-optimised versus throughput-optimised processors, NUMA, and the end of the host-to-device copy.
The interconnect
Topologies, why latency and tail behaviour matter more than bandwidth, and how the fabric market consolidated.