MPI ORTED.EXE和NVINIT.DLL(MPI ORTED.EXE and NVINIT.DLL)

MPI ORTED.EXE和NVINIT.DLL(MPI ORTED.EXE and NVINIT.DLL)

在解决了我之前关联MPI程序的问题之后，我试图在不成功的情况下启动该程序。

mpirun -np 4 mpi_prime.exe

以这种方式启动程序导致弹出4个（对于每个进程）重叠的窗口，说明：

Die Anwendung konnte nicht gestartet werden（0xc00007b）。

所以我用dependency-walker（DW）查看了可执行文件，检查.DLL文件的错误依赖性。 事实证明，DW确实只找到32位（x86）.DLL文件。

我通过再次使用DW（F7）运行可执行程序来启动配置文件。

日志提出了一个值得注意的按摩：

GetProcAddress(0x00FF0000 [ORTED.EXE], "NvOptimusEnablement") called from "NVINIT.DLL" at address 0x75266BDE and returned NULL. Error: Die angegebene Prozedur wurde nicht gefunden (127).

我不知道这应该告诉我什么，或者我如何解决它。

After solving my previous problem linking a MPI program, I tried to start that program unfortunatelly without much success.

mpirun -np 4 mpi_prime.exe

Starting the program this way resulted in poping up 4 (for each process) overlapping windows stating:

Die Anwendung konnte nicht gestartet werden (0xc00007b).

So I looked at the executeable with dependency-walker(DW), checking for wrong dependencies of .DLL files. As it turned out DW did find only 32bit (x86) .DLL files.

I startet a profile by running my executeable with DW (F7) again.

The log came up with a notable massage:

GetProcAddress(0x00FF0000 [ORTED.EXE], "NvOptimusEnablement") called from "NVINIT.DLL" at address 0x75266BDE and returned NULL. Error: Die angegebene Prozedur wurde nicht gefunden (127).

I don't have a clue whats this supposed to tell me, or how I can fix it.

最满意答案

自己解决了。

根据Nvidia的说法：

从Release 302驱动程序开始，应用程序开发人员可以在运行时指示Optimus驱动程序使用High Performanc e Graphics来呈现任何应用程序 - 甚至是那些没有现有应用程序配置文件的应用程序。 他们可以通过导出名为NvOptimusEnablement的全局变量来实现此目的。

因此，应用程序可以明确地打开我的GPU核心并使用它们。

我仍然不知道，OpenMPI和我的Nvidia显卡之间的联系是什么，但是我能够通过重新安装新的Nvidia显卡驱动程序解决问题。

Solved it myself.

According to Nvidia:

Starting with the Release 302 drivers, appl ication developers can direct the Optimus driver at runtime to use the High Performanc e Graphics to render any application–even those applications for which there is no existi ng application profile. They can do this by exporting a global variable named NvOptimusEnablement .

So applications can explicitly switch on my GPU Cores and use them.

I still don't know, what the connection between OpenMPI and my Nvidia Graphics card is, however I was able solving the problem by reinstalling a new Nvidia Graphics Card driver.