Question

我正在尝试从txt文件读取int并加倍。当我在控制台中运行该进程时，一切正常，但是当我通过单个进程处理MPI时，会给我一个错误：

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  Widget build(context) {
    return ScopedModel(
      model: new CounterModel(),
      child: Scaffold(
        appBar: AppBar(
          title: Text('ScopedModel'),
        ),
        body: ScopedModelDescendant<CounterModel>(
          builder: (context, child, value) {
            return Text("Pressed ${value.counter} times");
          },
        ),
        floatingActionButton: Builder(
          builder: (context) {
            // return buildFab1() if fab one required
            return buildFab2(context);
          },
        ),
      ),
    );
  }

  Widget buildFab1() {
    return ScopedModelDescendant<CounterModel>(
      builder: (context, child, model) => FloatingActionButton(
            child: Icon(Icons.add),
            onPressed: model.incrementCounter,
          ),
    );
  }

  Widget buildFab2(BuildContext context) {
    return FloatingActionButton(
      child: Icon(Icons.add),
      onPressed: ScopedModel.of<CounterModel>(context).incrementCounter,
    );
  }
}

我只使用了两个命令来读取文件：

$ ./a.out
job aborted:
rank: node: exit code [: error message]
0: DESKTOP-QUJB667: -1073740791: process 0 exited without calling finalize

从文件读取的问题只是我要做的更广泛任务的初始阶段。

FILE * file = fopen ("pixel.txt", "r");
fscanf (file, "% d", & numOfPixelsInFile);

从MPI中的文本文件读取

0 个答案: