<div dir="ltr">Dir dirs,<div><br></div><div>I am working on evaluation of hybrid solvers including PDSLin  which us Krylov method of PETSc as a dependency but I did not find the matrices used for evaluating these solvers used in literature namely, <span style="color:rgb(0,0,0);font-family:Arial;font-size:14px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">Matrix211 , Tdr455k ,Tdr190kI<span> ... they seem not to be publically available ,</span></span></div><div><span style="color:rgb(0,0,0);font-family:Arial;font-size:14px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span><br></span></span></div><div><font color="#000000" face="Arial"><span style="font-size:14px">Do you have any idea how can I find them</span></font></div><div><span style="color:rgb(0,0,0);font-family:Arial;font-size:14px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span>thank you</span></span></div></div>