Compare · hpc gpu computing

NVIDIA NCCL VS OpenCL_

As of 4 November 2026, OpenCL is named by 147 companies and NVIDIA NCCL by 195; NVIDIA NCCL skews to companies under 200 people (56% vs 54%), OpenCL to companies over 1,000 (29% vs 18%).

As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

The website-and-DNS footprint is not comparable between a marketing suite and a CRM: NVIDIA NCCL's script and mail records show on hundreds of thousands of small sites, OpenCL rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.

NVIDIA NCCL: 2–200 employees
56%
OpenCL: 2–200 employees
54%
NVIDIA NCCL: 1,000+ employees
18%
OpenCL: 1,000+ employees
29%
Postings per company, 90 days
4.2 · 3.8
Website or DNS footprint
0 · 0
195companies name NVIDIA NCCL
147companies name OpenCL
0name both
812 · 558postings in 90 days, NVIDIA NCCL · OpenCL
02 — Side by side

Who chooses which

Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.

By company size
SegmentNVIDIA NCCLshareOpenCLshareLeans
Self-employed168%64%NVIDIA NCCL
2-10 employees4925%2316%NVIDIA NCCL
11-50 employees3015%3322%OpenCL
51-200 employees3116%2316%even
201-500 employees2312%128%NVIDIA NCCL
501-1000 employees105%85%even
1001-5000 employees95%128%OpenCL
5001-10000 employees63%64%even
10,001+ employees2111%2416%OpenCL
By industry
SegmentNVIDIA NCCLshareOpenCLshareLeans
Technology & software12564%4833%NVIDIA NCCL
Manufacturing & industry2915%5638%OpenCL
Public, community & associations137%96%even
Business & finance services95%1712%OpenCL
Media & content63%75%even
Utilities & infrastructure42%21%even
Consumer services & leisure32%21%even
Automotive21%43%even
Commerce & trade21%11%even
Transport, logistics & rental21%––outside top 12
Property & construction––11%outside top 12
By country
SegmentNVIDIA NCCLshareOpenCLshareLeans
United States14474%9263%NVIDIA NCCL
United Kingdom147%107%even
India42%64%OpenCL
Australia32%21%even
Canada32%64%OpenCL
Switzerland32%21%even
Germany32%96%OpenCL
France32%53%even
United Arab Emirates21%––outside top 12
South Korea21%––outside top 12
Singapore21%––outside top 12
Belgium11%21%even
Netherlands––21%outside top 12
Poland––21%outside top 12
Austria––11%outside top 12
Postings by team (share of each tool's postings)
SegmentNVIDIA NCCLshareOpenCLshareLeans
Software engineering26325%32745%OpenCL
Data & AI23122%14920%even
IT operations & business systems12011%81%NVIDIA NCCL
Sales626%91%NVIDIA NCCL
Engineering (non-software)485%10915%OpenCL
Customer service & success202%––outside top 12
Product, program & project management121%91%even
Business development & strategy61%––outside top 12
Marketing & communications50%10%even
research and science20%51%even
Quality, safety & environment10%10%even
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

OpenCL is named by 147 companies in job postings and NVIDIA NCCL by 195; 0 name both. (Breaknorm, 4 November 2026, https://breaknorm.co/compare/nvidia-nccl-vs-opencl)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • Job postingsRead hourly from career sites. A tool counts when the employer's own text names it as the team's system; both tools can count for one company.
  • Website and DNSScripts and embeds on the company's pages, plus SPF, DKIM, MX and CNAME records of its domain that point at the vendor.
  • SegmentsCountry, size and industry from the company profile built from its website.
  • Not a reviewNo ratings, prices or feature claims. For those, read the vendors.
FAQ

NVIDIA NCCL vs OpenCL: questions

Which is more used, NVIDIA NCCL or OpenCL?

By companies naming it in their own job postings, NVIDIA NCCL (195) over OpenCL (147). By website-and-DNS footprint, OpenCL (0 vs 0), because its scripts and mail records sit on many small company sites.

Who chooses NVIDIA NCCL?

56% of NVIDIA NCCL companies have 2 to 200 employees, against 54% for OpenCL. 18% of NVIDIA NCCL companies have over 1,000 employees, against 29% for OpenCL.

Do companies run both?

0 companies name both in their postings, usually NVIDIA NCCL in marketing and OpenCL in sales, or during a migration.

Where do these numbers come from?

From the employer's own text in job postings read hourly from career sites, and from scripts found on company websites in our crawl. No vendor data, no surveys.

Companies and people

Get either list your way

The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.

Every company on either tool,
with the person who owns it

Filter on NVIDIA NCCL or OpenCL, and get 1,000 records free.

  1. 01Sign up, no card
  2. 02Connect Claude, ChatGPT or an API key
  3. 03Ask for your market, 1,000 records free