SDPLR is freely distributed and is available at http://dollar.biz.uiowa.edu/~burer/software/SDPLR/
SDPLR is invoked with sdpsettings('solver','sdplr').
SDPLR is specialized for problems with a low rank dual solution (dual in YALMIPs notation). The solver can additionally also exploit low rank data matrices. For information on how this can be done using YALMIP, see lowrank.
SDPLR is not meant to be used as a general purpose SDP solver.