libstxxl1-bin 1.4.1-3build1 (armhf binary) in ubuntu impish

 STXXL provides an STL replacement using an abstraction layer to
 storage devices to allow for the optimal layout of data structures. This
 allows for multi-terabyte datasets to be held and manipulated in standard
 C++ data structures, whilst abstracting the complexity of managing this
 behaviour efficiently. STXXL utilises multi-disk I/O to speed up
 I/O bound calculations. STXXL has been developed at the University
 of Karlsruhe.
 .
 A benchmarking tool and STXXL on-disk file administration utility