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piqp

R Interface to Proximal Interior Point Quadratic Programming Solver

v0.6.2 · Feb 18, 2026 · BSD_2_clause + file LICENSE

Description

An embedded proximal interior point quadratic programming solver, which can solve dense and sparse quadratic programs, described in Schwan, Jiang, Kuhn, and Jones (2023) <doi:10.48550/arXiv.2304.00290>. Combining an infeasible interior point method with the proximal method of multipliers, the algorithm can handle ill-conditioned convex quadratic programming problems without the need for linear independence of the constraints. The solver is written in header only 'C++ 14' leveraging the 'Eigen' library for vectorized linear algebra. For small dense problems, vectorized instructions and cache locality can be exploited more efficiently. Allocation free problem updates and re-solves are also provided.

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CRAN Check Status

2 NOTE
12 OK
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r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-macos-arm64 OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 NOTE
r-oldrel-macos-x86_64 NOTE
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK
Check details (2 non-OK)
NOTE r-oldrel-macos-arm64

installed package size

installed size is 19.0Mb
  sub-directories of 1Mb or more:
    libs  18.7Mb
NOTE r-oldrel-macos-x86_64

installed package size

installed size is 19.9Mb
  sub-directories of 1Mb or more:
    libs  19.6Mb

Check History

NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
NOTE r-oldrel-macos-arm64

installed package size

installed size is 19.0Mb
  sub-directories of 1Mb or more:
    libs  18.7Mb
NOTE r-oldrel-macos-x86_64

installed package size

installed size is 19.9Mb
  sub-directories of 1Mb or more:
    libs  19.6Mb

Reverse Dependencies (1)

imports

qfa

Dependency Network

Dependencies Reverse dependencies Matrix Rcpp S7 qfa piqp

Version History

new 0.6.2 Mar 10, 2026
updated 0.6.2 ← 0.2.2 diff Feb 17, 2026
new 0.2.2 Aug 13, 2023