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Parallel Processing Letters is Scopus-indexed (Q4, CiteScore 1.1), WoS ESCI. It is covered by India's One Nation One Subscription scheme for reading access. Published by World Scientific.
Checked against the index lists dated .
ISSN 0129-6264Verify ISSN ↗1793-642XVerify ISSN ↗
Publisher: World Scientific
Cost to publish: No APC data — check the publisher
| Subject area | Rank | Pctile | Q |
|---|---|---|---|
| Hardware and Architecture | 194 / 245 | 20th | Q4 |
| Software | 433 / 503 | 14th | Q4 |
| Theoretical Computer Science | 121 / 135 | 10th | Q4 |
Not listed in: DOAJ, ABDC, ABS / AJG, FT50, UT Dallas, ONOS (APC covered)
Yes — actively indexed in Scopus, coverage 1994–present, best quartile Q4, CiteScore 1.1.
Parallel Processing Letters is Q4 in Hardware and Architecture (rank 194 of 245), Q4 in Software (rank 433 of 503) and Q4 in Theoretical Computer Science (rank 121 of 135), by CiteScore 2025.
Parallel Processing Letters is indexed in the Emerging Sources Citation Index, so it may have a Journal Impact Factor in Clarivate's Journal Citation Reports. JCR is paid, so check it for the current value. The closest free measure is its Scopus CiteScore 1.1, which places it in quartile Q4 at the 20th percentile of its subject. Its SCImago Journal Rank (SJR, a free Scopus-based metric) is 0.202, quartile Q4, with an H-index of 34.
Parallel Processing Letters is published by World Scientific. Its print ISSN is 0129-6264 and its online ISSN is 1793-642X.
Yes. It is part of the One Nation One Subscription (ONOS) national subscription, so readers at participating Indian institutions get its full text. ONOS does not cover its article processing charge.
Yes — indexed in the Emerging Sources Citation Index.
No — it is not registered as an open-access journal in DOAJ or Scopus.
Parallel Processing Letters has an h-index of 46 and a 2-year mean of 0.37 citations per paper (OpenAlex). Its Scopus CiteScore is 1.1, quartile Q4. On 2-year citations it ranks #146 of 166 Scopus journals in Hardware and Architecture.
Parallel Processing Letters published 15 papers in 2025; its busiest recent year was 2021 with 29. 2026* is the year so far.
h-index, i10-index and 2-year mean citedness are open, licence-clear metrics from OpenAlex — not a proprietary impact factor. The subject rank counts only journals that OpenAlex has a figure for; it is not a Scopus or Clarivate ranking. Updated 2026-10-14.
In its latest 97 research articles (2021–2026), authors are most often from China (45.4%), United States (8.6%) and India (8.2%).
Countries are counted fractionally, so a paper by authors from two countries counts half to each.
Scopus status: Active. No retracted papers are recorded. The Problematic Paper Screener flags none of its papers. These are indicators to check, not findings against the journal.
Retractions from OpenAlex; flags from the Problematic Paper Screener (Cabanac, Labbé & Magazinov, CC BY), 2026-09-21 export. A flag marks a paper for a closer look; it is not a finding against the journal.
Index data is curated from public sources (Scopus, Web of Science, ABDC, FT50, UT Dallas, DOAJ). CiteScore and quartiles reflect the latest available Scopus release. Always verify a journal's current status on its official source before submitting.
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