Retry a few times if directory creation fails

WeiqunZhang · WeiqunZhang · commit 3a3deee675c2 · 2025-07-03T19:43:31.000-07:00
This tries to fix the following error reported by @BenWibking Writing checkpoint chk02500 amrex::UtilCreateDirectory:: path errno: chk02500 :: File exists amrex::UtilCreateDirectory:: path errno: chk02500/Level_2 :: Input/output error amrex::Error::0::Couldn't create directory: chk02500/Level_2 !!!
diff --git a/Src/Base/AMReX_Utility.cpp b/Src/Base/AMReX_Utility.cpp
@@ -116,7 +116,13 @@ bool
 amrex::UtilCreateDirectory (const std::string& path,
                             mode_t mode, bool verbose)
 {
-    return FileSystem::CreateDirectories(path, mode, verbose);
+    double sleep = 0.1;
+    while (sleep < 2.0) {
+        if (FileSystem::CreateDirectories(path, mode, verbose)) { return true; }
+        amrex::Sleep(sleep);
+        sleep *= 2;
+    }
+    return false;
 }
 
 void

Original file line number	Diff line number	Diff line change
`@@ -116,7 +116,13 @@ bool`
`116`	`116`	`amrex::UtilCreateDirectory (const std::string& path,`
`117`	`117`	`mode_t mode, bool verbose)`
`118`	`118`	`{`
`119`		`- return FileSystem::CreateDirectories(path, mode, verbose);`
	`119`	`+ double sleep = 0.1;`
	`120`	`+ while (sleep < 2.0) {`
	`121`	`+ if (FileSystem::CreateDirectories(path, mode, verbose)) { return true; }`
	`122`	`+ amrex::Sleep(sleep);`
	`123`	`+ sleep *= 2;`
	`124`	`+ }`
	`125`	`+ return false;`
`120`	`126`	`}`
`121`	`127`
`122`	`128`	`void`