问题描述
我正在尝试在 rootbeer 库中运行第一个示例，您可以从。
I am trying to run the first example in rootbeer library, which you can find from here.
问题是，即使我按照他们的所有说明操作，我收到以下消息时试图运行Jar
The issue is, even though I followed all of their instructions, I am getting the following message when I am trying to run the Jar
root@ubuserver3:/home/ubuadmin/JavaJars/HelloWordGPU# java -jar HelloWorldGPU.jar
OpenJDK Client VM warning: You have loaded library /usr/lib/libcuda.so.319.37 which might have disabled stack guard. The VM will try to fix the stack guard now.
It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'.
Exception in thread "main" java.lang.NullPointerException
at org.trifort.rootbeer.runtime.Rootbeer.run(Rootbeer.java:104)
at ScalarMult.test(ScalarMult.java:13)
at Main.main(Main.java:17)
我不是一个Linux人员，所以我不明白如何正确执行这个命令。我也不明白它们的意思是什么，因为这是我第一次使用GPU编程。但我知道用错误的命令搞乱GPU是一个问题。
I am not a Linux person, so I do not understand how to execute this command properly. I also don't understand what they mean by that message, because this is the first time I am on GPU programming. But I know messing with GPU with wrong commands would be a problem.
推荐答案
类型： execstack - version 检查你是否已经安装了execstack。
Type: execstack --version to check if you already have execstack installed.
如果找不到命令，请输入： sudo apt-get install execstack -y --force-yes
If you get command not found type: sudo apt-get install execstack -y --force-yes
输入 sudo execstack -c< file>
例如 sudo execstack -c /usr/lib/libcuda.so
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