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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="MATSOLVERCUSPARSE"><H1>MATSOLVERCUSPARSE</H1></A>
"cusparse" - A matrix type providing triangular solvers for seq matrices on a single GPU of type, seqaijcusparse, aijcusparse, or seqaijcusp, aijcusp. Currently supported algorithms are ILU(k) and ICC(k). Typically, deeper factorizations (larger k) results in poorer performance in the triangular solves. Full LU, and Cholesky decompositions can be solved through the CUSPARSE triangular solve algorithm. However, the performance can be quite poor and thus these algorithms are not recommended. This class does NOT support direct solver operations. ./configure --download-txpetscgpu to install PETSc to use CUSPARSE
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Consult CUSPARSE documentation for more information about the matrix storage formats
which correspond to the options database keys below.
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<H3><FONT COLOR="#CC3333">Options Database Keys</FONT></H3>
<DT><B>-mat_cusparse_solve_storage_format csr </B> -sets the storage format matrices (for factors in <A HREF="../Mat/MatSolve.html#MatSolve">MatSolve</A>) during a call to <A HREF="../Mat/MatSetFromOptions.html#MatSetFromOptions">MatSetFromOptions</A>(). Other options include ell (ellpack) or hyb (hybrid). Only available with 'txpetscgpu' package.
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<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../PC/PCFactorSetMatSolverPackage.html#PCFactorSetMatSolverPackage">PCFactorSetMatSolverPackage</A>(), <A HREF="../Mat/MatSolverPackage.html#MatSolverPackage">MatSolverPackage</A>, <A HREF="../Mat/MatCreateSeqAIJCUSPARSE.html#MatCreateSeqAIJCUSPARSE">MatCreateSeqAIJCUSPARSE</A>(), <A HREF="../Mat/MATAIJCUSPARSE.html#MATAIJCUSPARSE">MATAIJCUSPARSE</A>, <A HREF="../Mat/MatCreateAIJCUSPARSE.html#MatCreateAIJCUSPARSE">MatCreateAIJCUSPARSE</A>(), <A HREF="../Mat/MatCUSPARSESetFormat.html#MatCUSPARSESetFormat">MatCUSPARSESetFormat</A>(), <A HREF="../Mat/MatCUSPARSEStorageFormat.html#MatCUSPARSEStorageFormat">MatCUSPARSEStorageFormat</A>, <A HREF="../Mat/MatCUSPARSEFormatOperation.html#MatCUSPARSEFormatOperation">MatCUSPARSEFormatOperation</A>
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/impls/aij/seq/seqcusparse/aijcusparse.cu#MATSOLVERCUSPARSE">src/mat/impls/aij/seq/seqcusparse/aijcusparse.cu</A>
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