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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="MATAIJCUSP"><H1>MATAIJCUSP</H1></A>
MATMPIAIJCUSP= "aijcusp" = "mpiaijcusp" - A matrix type to be used for sparse matrices. A matrix type type whose data resides on Nvidia GPUs. These matrices can be CSR format.
All matrix calculations are performed using the CUSP library. DIA and ELL
formats are ONLY available when using the 'txpetscgpu' package. Use --download-txpetscgpu
to build/install PETSc to use different GPU storage formats with CUSP matrix types.
<P>
This matrix type is identical to <A HREF="../Mat/MATSEQAIJCUSP.html#MATSEQAIJCUSP">MATSEQAIJCUSP</A> when constructed with a single process communicator,
and MATMPIAIJCUSP otherwise. As a result, for single process communicators,
<A HREF="../Mat/MatSeqAIJSetPreallocation.html#MatSeqAIJSetPreallocation">MatSeqAIJSetPreallocation</A> is supported, and similarly <A HREF="../Mat/MatMPIAIJSetPreallocation.html#MatMPIAIJSetPreallocation">MatMPIAIJSetPreallocation</A> is supported
for communicators controlling multiple processes. It is recommended that you call both of
the above preallocation routines for simplicity.
<P>
<H3><FONT COLOR="#CC3333">Options Database Keys</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_type mpiaijcusp </B></TD><TD>- sets the matrix type to "mpiaijcusp" during a call to <A HREF="../Mat/MatSetFromOptions.html#MatSetFromOptions">MatSetFromOptions</A>()
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_cusp_storage_format csr </B></TD><TD>- sets the storage format of diagonal and off-diagonal matrices during a call to <A HREF="../Mat/MatSetFromOptions.html#MatSetFromOptions">MatSetFromOptions</A>(). Other storage formats include dia (diagonal) or ell (ellpack) which are only available with 'txpetscgpu' package. Moreover this option is only available with the 'txpetscgpu' package.
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_cusp_mult_diag_storage_format csr </B></TD><TD>- sets the storage format of diagonal matrix during a call to <A HREF="../Mat/MatSetFromOptions.html#MatSetFromOptions">MatSetFromOptions</A>(). Other storage formats include dia (diagonal) or ell (ellpack) which are only available with 'txpetscgpu' package. Moreover this option is only available with the 'txpetscgpu' package.
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_cusp_mult_offdiag_storage_format csr </B></TD><TD>- sets the storage format of off-diagonal matrix during a call to <A HREF="../Mat/MatSetFromOptions.html#MatSetFromOptions">MatSetFromOptions</A>(). Other storage formats include dia (diagonal) or ell (ellpack) which are only available with 'txpetscgpu' package. Moreover this option is only available with the 'txpetscgpu' package.
</TD></TR></TABLE>
<P>
<P>
.seealso: <A HREF="../Mat/MatCreateAIJCUSP.html#MatCreateAIJCUSP">MatCreateAIJCUSP</A>(), <A HREF="../Mat/MATSEQAIJCUSP.html#MATSEQAIJCUSP">MATSEQAIJCUSP</A>, <A HREF="../Mat/MatCreateSeqAIJCUSP.html#MatCreateSeqAIJCUSP">MatCreateSeqAIJCUSP</A>(), <A HREF="../Mat/MatCUSPSetFormat.html#MatCUSPSetFormat">MatCUSPSetFormat</A>(), <A HREF="../Mat/MatCUSPStorageFormat.html#MatCUSPStorageFormat">MatCUSPStorageFormat</A>, <A HREF="../Mat/MatCUSPFormatOperation.html#MatCUSPFormatOperation">MatCUSPFormatOperation</A>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/impls/aij/mpi/mpicusp/mpiaijcusp.cu#MATAIJCUSP">src/mat/impls/aij/mpi/mpicusp/mpiaijcusp.cu</A>
<BR><A HREF="./index.html">Index of all Mat routines</A>
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex4.c.html">src/ksp/ksp/examples/tutorials/ex4.c.html</A><BR>
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