class="cmr-12">Note that the module </span><codeclass="lstinline"><spanstyle="color:#000000">amg_prec_mod</span></code><span
class="cmr-12">, containing the definition of the preconditioner</span>
<span
class="cmr-12">data type and the interfaces to the routines of AMG4PSBLAS, must be used</span>
class="cmr-12">data type and the interfaces to the routines of AMG4PSBLAS, must be used in any</span>
<span
class="cmr-12">in any program calling such routines. The modules </span><codeclass="lstinline"><spanstyle="color:#000000">psb_base_mod</span></code><span
class="cmr-12">, for the</span>
class="cmr-12">program calling such routines. The modules </span><codeclass="lstinline"><spanstyle="color:#000000">psb_base_mod</span></code><span
class="cmr-12">, for the sparse</span>
<span
class="cmr-12">sparse matrix and communication descriptor data types, and </span><codeclass="lstinline"><spanstyle="color:#000000">psb_krylov_mod</span></code><span
class="cmr-12">matrix and communication descriptor data types, and </span><codeclass="lstinline"><spanstyle="color:#000000">psb_linsolve_mod</span></code><span
class="cmr-12">,</span>
<span
class="cmr-12">for interfacing with the Krylov solvers, must be also used (see Section</span><span
@ -414,7 +414,7 @@ class="cmr-12">with the CG solver provided by PSBLAS (the matrix of the system t
class="cmr-12">solved is assumed to be positive definite). As previously observed, the modules</span>