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<TITLE>VecCreate</TITLE>
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<div id="version" align=right><b>petsc-3.14.5 2021-03-03</b></div>
<div id="bugreport" align=right><a href="mailto:petsc-maint@mcs.anl.gov?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: petsc-3.14.5 v3.14.5 docs/manualpages/Vec/VecCreate.html "><small>Report Typos and Errors</small></a></div>
<A NAME="VecCreate"><H1>VecCreate</H1></A>
Creates an empty vector object. The type can then be set with <A HREF="../Vec/VecSetType.html#VecSetType">VecSetType</A>(), or <A HREF="../Vec/VecSetFromOptions.html#VecSetFromOptions">VecSetFromOptions</A>().
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscvec.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../Vec/VecCreate.html#VecCreate">VecCreate</A>(<A HREF="../Sys/MPI_Comm.html#MPI_Comm">MPI_Comm</A> comm, <A HREF="../Vec/Vec.html#Vec">Vec</A> *vec)
</PRE>
If you never call <A HREF="../Vec/VecSetType.html#VecSetType">VecSetType</A>() or <A HREF="../Vec/VecSetFromOptions.html#VecSetFromOptions">VecSetFromOptions</A>() it will generate an
error when you try to use the vector.
<P>
Collective
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>comm </B></TD><TD>- The communicator for the vector object
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>vec </B></TD><TD>- The vector object
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Vec/VecSetType.html#VecSetType">VecSetType</A>(), <A HREF="../Vec/VecSetSizes.html#VecSetSizes">VecSetSizes</A>(), <A HREF="../Vec/VecCreateMPIWithArray.html#VecCreateMPIWithArray">VecCreateMPIWithArray</A>(), <A HREF="../Vec/VecCreateMPI.html#VecCreateMPI">VecCreateMPI</A>(), <A HREF="../Vec/VecDuplicate.html#VecDuplicate">VecDuplicate</A>(),
<BR><A HREF="../Vec/VecDuplicateVecs.html#VecDuplicateVecs">VecDuplicateVecs</A>(), <A HREF="../Vec/VecCreateGhost.html#VecCreateGhost">VecCreateGhost</A>(), <A HREF="../Vec/VecCreateSeq.html#VecCreateSeq">VecCreateSeq</A>(), <A HREF="../Vec/VecPlaceArray.html#VecPlaceArray">VecPlaceArray</A>()
<P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>beginner<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/vec/vec/interface/veccreate.c.html#VecCreate">src/vec/vec/interface/veccreate.c</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/vec/vec/utils/tagger/tutorials/ex1.c.html">src/vec/vec/utils/tagger/tutorials/ex1.c.html</A><BR>
<A HREF="../../../src/vec/vec/tutorials/ex1.c.html">src/vec/vec/tutorials/ex1.c.html</A><BR>
<A HREF="../../../src/vec/vec/tutorials/ex2.c.html">src/vec/vec/tutorials/ex2.c.html</A><BR>
<A HREF="../../../src/vec/vec/tutorials/ex3.c.html">src/vec/vec/tutorials/ex3.c.html</A><BR>
<A HREF="../../../src/vec/vec/tutorials/ex5.c.html">src/vec/vec/tutorials/ex5.c.html</A><BR>
<A HREF="../../../src/vec/vec/tutorials/ex6.c.html">src/vec/vec/tutorials/ex6.c.html</A><BR>
<A HREF="../../../src/vec/vec/tutorials/ex7.c.html">src/vec/vec/tutorials/ex7.c.html</A><BR>
<A HREF="../../../src/vec/vec/tutorials/ex8.c.html">src/vec/vec/tutorials/ex8.c.html</A><BR>
<A HREF="../../../src/vec/vec/tutorials/ex9.c.html">src/vec/vec/tutorials/ex9.c.html</A><BR>
<A HREF="../../../src/vec/vec/tutorials/ex10.c.html">src/vec/vec/tutorials/ex10.c.html</A><BR>
<A HREF="../../../src/vec/vec/tutorials/ex11.c.html">src/vec/vec/tutorials/ex11.c.html</A><BR>
<P><H3><FONT COLOR="CC3333">Implementations</FONT></H3><A HREF="../../../src/vec/vec/impls/mpi/kokkos/mpikok.kokkos.cxx.html#VecCreate_MPIKokkos">VecCreate_MPIKokkos in src/vec/vec/impls/mpi/kokkos/mpikok.kokkos.cxx</A><BR>
<A HREF="../../../src/vec/vec/impls/mpi/kokkos/mpikok.kokkos.cxx.html#VecCreate_Kokkos">VecCreate_Kokkos in src/vec/vec/impls/mpi/kokkos/mpikok.kokkos.cxx</A><BR>
<A HREF="../../../src/vec/vec/impls/mpi/mpicuda/mpicuda.cu.html#VecCreate_MPICUDA">VecCreate_MPICUDA in src/vec/vec/impls/mpi/mpicuda/mpicuda.cu</A><BR>
<A HREF="../../../src/vec/vec/impls/mpi/mpicuda/mpicuda.cu.html#VecCreate_CUDA">VecCreate_CUDA in src/vec/vec/impls/mpi/mpicuda/mpicuda.cu</A><BR>
<A HREF="../../../src/vec/vec/impls/mpi/mpiviennacl/mpiviennacl.cxx.html#VecCreate_MPIViennaCL">VecCreate_MPIViennaCL in src/vec/vec/impls/mpi/mpiviennacl/mpiviennacl.cxx</A><BR>
<A HREF="../../../src/vec/vec/impls/mpi/mpiviennacl/mpiviennacl.cxx.html#VecCreate_ViennaCL">VecCreate_ViennaCL in src/vec/vec/impls/mpi/mpiviennacl/mpiviennacl.cxx</A><BR>
<A HREF="../../../src/vec/vec/impls/mpi/pbvec.c.html#VecCreate_MPI">VecCreate_MPI in src/vec/vec/impls/mpi/pbvec.c</A><BR>
<A HREF="../../../src/vec/vec/impls/mpi/pbvec.c.html#VecCreate_Standard">VecCreate_Standard in src/vec/vec/impls/mpi/pbvec.c</A><BR>
<A HREF="../../../src/vec/vec/impls/node/vecnode.c.html#VecCreate_Node">VecCreate_Node in src/vec/vec/impls/node/vecnode.c</A><BR>
<A HREF="../../../src/vec/vec/impls/seq/bvec3.c.html#VecCreate_Seq">VecCreate_Seq in src/vec/vec/impls/seq/bvec3.c</A><BR>
<A HREF="../../../src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx.html#VecCreate_SeqKokkos">VecCreate_SeqKokkos in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx</A><BR>
<A HREF="../../../src/vec/vec/impls/seq/seqcuda/veccuda.c.html#VecCreate_SeqCUDA">VecCreate_SeqCUDA in src/vec/vec/impls/seq/seqcuda/veccuda.c</A><BR>
<A HREF="../../../src/vec/vec/impls/seq/seqviennacl/vecviennacl.cxx.html#VecCreate_SeqViennaCL">VecCreate_SeqViennaCL in src/vec/vec/impls/seq/seqviennacl/vecviennacl.cxx</A><BR>
<A HREF="../../../src/vec/vec/impls/shared/shvec.c.html#VecCreate_Shared">VecCreate_Shared in src/vec/vec/impls/shared/shvec.c</A><BR>
<A HREF="../../../src/vec/vec/impls/shared/shvec.c.html#VecCreate_Shared">VecCreate_Shared in src/vec/vec/impls/shared/shvec.c</A><BR>
<BR><A HREF="./index.html">Index of all Vec 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>
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