1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
<HTML>
<HEAD> <link rel="canonical" href="http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Sys/PetscCUDAInitializeCheck.html" />
<META NAME="GENERATOR" CONTENT="DOCTEXT">
<TITLE>PetscCUDAInitializeCheck</TITLE>
</HEAD>
<BODY BGCOLOR="FFFFFF">
<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/Sys/PetscCUDAInitializeCheck.html "><small>Report Typos and Errors</small></a></div>
<A NAME="PetscCUDAInitializeCheck"><H1>PetscCUDAInitializeCheck</H1></A>
Check if CUDA is initialized. If not, initialize it.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
PETSC_EXTERN <A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../Sys/PetscCUDAInitializeCheck.html#PetscCUDAInitializeCheck">PetscCUDAInitializeCheck</A>(void)
</PRE>
Logically collective
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
In PETSc lazy device initialization, PETSc calls this function right before creating the first CUDA/HIP object.
It can be used by application developers who want to lazily initialize CUDA/HIP when they start to use it (which may before a PETSc CUDA/HIP object is created.)
<P>
.seealso: <A HREF="../Sys/PetscCUDAInitialize.html#PetscCUDAInitialize">PetscCUDAInitialize</A>(), <A HREF="../Sys/PetscHIPInitialize.html#PetscHIPInitialize">PetscHIPInitialize</A>(), <A HREF="../Sys/PetscHIPInitializeCheck.html#PetscHIPInitializeCheck">PetscHIPInitializeCheck</A>()
<P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>beginner<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/sys/objects/cupminit.i.c.html#PetscCUDAInitializeCheck">src/sys/objects/cupminit.inc</A>
<BR><A HREF="./index.html">Index of all Sys 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>
</BODY></HTML>
|
