Computer Architecture Letters is an official publication of the IEEE Computer Society and presents a quarterly forum for fast publication of novel, high-quality ideas in the form of short, critically refereed, technical papers. Accepted letters are immediately published in the IEEE Xplore Digital Library and Computer Society Digital Library, and then in the next print issue. CA-Letters is currently bi-annual. Official date of publication, however, is the date of online posting. Monthly notifications of new papers are sent to the TCCA and SIGARCH memberships.

Submissions are accepted on a continuing basis. Please see our call for papers. Current turn-around is approximately one month (since Jan. 1 2010, 85% of papers are decided within one month, 93% within 6 weeks, and 99% within two months), and current acceptance rate is approximately 24%. All submissions must consist of original work that has not been previously published nor is currently under review elsewhere. Contributions beyond prior work must be clearly articulated. Letters submissions that extend or are otherwise closely related to the authors' prior publications must also include copies of those prior papers. Please also note that we use CrossCheck to determine whether plagiarism may be present.

Publication in CA-Letters should not generally preclude subsequent publication in conferences or journals, as long as subsequent manuscripts contain sufficient new material. However, overlapping submission to CA-Letters and another venue (where the Letters paper is essentially a subset of the longer manuscript) is generally not allowed. This would run against the spirit of what Letters is trying to accomplish. The focus of Letters is early publication and feedback on new work. If the work is already mature enough to submit a full-length paper before receiving your decision from CA-Letters, this generally defeats the role of Letters. This is of course only a general policy. Our goal is to be flexible and open to papers that will advance the field. If you have questions about specific circumstances, please feel free to contact the editors-in-chief. However, if a concurrent submission is detected without having previously discussed the matter with the EICs, the subission will be rejected and future submission will be disallowed for six months.

IEEE Computer Architecture Letters (CA-Letters) and the IEEE International Symposium on High-Performance Computer Architecture (HPCA) are pleased to announce a special session as part of HPCA 2012's core program on the "Best Papers from Computer Architecture Letters" from 2011. All papers that were posted online or appeared in print in 2011 will be eligible. The CA-Letters ed-board will nominate approximately 8 papers, and a committee of CA-Letters and HPCA representatives will make the final selection of 3-4 papers. Authors of the selected papers will give a short, 10-min presentation, a (non-archival) pamphlet with 1-page extended abstracts for each selected paper will be distributed at the session, and there will be plenty of time for questions and discussion. Authors will be notified by Jan. 16, 2012.

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