未定义对cusolverDn的引用 [英] undefined reference to cusolverDn
问题描述
我正在尝试运行cuda 7.0中可用的cuSolver库.我在使用cuSolver库时遇到了一个问题,该问题必须非常容易修复,但是在这里我需要一些帮助.
I am trying to run the cuSolver library available in cuda 7.0. I have an issue with using the cuSolver library that must be very simple to fix, but here I am asking for some help.
我看了很多发布的示例,我特别从JackOLantern中选择了一个示例:
I have looked at quite a few examples posted around and I chose in particular this one from JackOLantern:
我刚刚将其简化为kernel_0.cu:
I have just reduced it to a kernel_0.cu:
#include "cuda_runtime.h"
#include "device_launch_parameters.h"
#include<iostream>
#include<iomanip>
#include<stdlib.h>
#include<stdio.h>
#include<assert.h>
#include<math.h>
#include <cusolverDn.h>
#include <cuda_runtime_api.h>
#include "Utilities.cuh"
/********/
/* MAIN */
/********/
int main(){
// --- gesvd only supports Nrows >= Ncols
// --- column major memory ordering
// --- cuSOLVE input/output parameters/arrays
int *devInfo; gpuErrchk(cudaMalloc(&devInfo, sizeof(int)));
// --- CUDA solver initialization
cusolverDnHandle_t solver_handle;
cusolverDnCreate(&solver_handle);
cusolverDnDestroy(solver_handle);
return 0;
}
我使用与JackOlantern相同的Utilities.cuh和Utilities.cu.我将其编译为(明确的):
I use the same Utilities.cuh and Utilities.cu as JackOlantern. I compile it as (to be explicit):
/usr/local/cuda-7.0/bin/nvcc kernel_0.cu Utilities.cu
我得到的是:
Utilities.cu(27): warning: conversion from a string literal to "char *" is deprecated
Utilities.cu(27): warning: conversion from a string literal to "char *" is deprecated
/tmp/tmpxft_00007e1d_00000000-22_kernel_0.o: In function `main':
tmpxft_00007e1d_00000000-4_kernel_0.cudafe1.cpp:(.text+0x3d): undefined reference to `cusolverDnCreate'
tmpxft_00007e1d_00000000-4_kernel_0.cudafe1.cpp:(.text+0x49): undefined reference to `cusolverDnDestroy'
collect2: error: ld returned 1 exit status
如果我注释掉cusolverDnCreate和cusolverDnDestroy,它可以很好地编译,因此显然包含了很好的库.
If I comment out the cusolverDnCreate and cusolverDnDestroy, it compiles fine, so the library is apparently well included.
我缺少什么简单而基本的要点?我已经搜索过了,但是无法解决.谢谢你.
What simple and basic point am I missing? I have searched around, but I could not fix it. Thanks there.
推荐答案
我缺少什么简单而基本的要点?
What simple and basic point am I missing?
您必须链接到cusolver库:
You have to link against the cusolver library:
/usr/local/cuda-7.0/bin/nvcc kernel_0.cu Utilities.cu -lcusolver
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