Singular Manual: waitAllTasks

| #### D.2.12.9 waitAllTasks Procedure from library `tasks.lib` (see tasks_lib). Usage: waitAllTasks(t1, t2, ...), t1, t2, ... tasks Return: nothing. Waits for all the tasks t1, t2, ... to complete. The state of the tasks is set to 'completed'. Note: A task whose state is neither 'started' nor 'completed' cannot be waited for. The result of any completed task can be accessed via getResult. 'waitAllTasks(t1, t2, ...);' is a shortcut for 'waitTasks(list(t1, t2, ...), size(list(t1, t2, ...)));'. Since returning a list of the indices of the completed tasks does not make sense in this case, nothing is returned. Example:
    LIB "tasks.lib";
    ring R = 0, (x,y), dp;
    ideal I = x9y2+x10, x2y7-y8;
    task t1 = "std", list(I);
    task t2 = "slimgb", list(I);
    startTasks(t1, t2);
    waitAllTasks(t1, t2);   // the same as 'waitTasks(list(t1, t2), 2);',
    // but without return value
    getResult(t1);
    ==> _[1]=x2y7-y8
    ==> _[2]=x9y2+x10
    ==> _[3]=x12y+xy11
    ==> _[4]=x13-xy12
    ==> _[5]=y14+xy12
    ==> _[6]=xy13+y12
    getResult(t2);
    ==> _[1]=x2y7-y8
    ==> _[2]=x9y2+x10
    ==> _[3]=x12y+xy11
    ==> _[4]=x13-xy12
    ==> _[5]=xy13+y12
    ==> _[6]=y14+xy12
    killTask(t1);
    killTask(t2);
See also: getResult; getState; pollTask; printTask; startTasks; waitTasks.

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