有人可以解释这个valgrind错误与开放mpi？

Question

我的基本问题是关于压缩文件如何在valgrind中工作。我已经看了好多指向上使用MPI版本以下的文档> 1.5（我的是1.6）：

mpirun -np 2 valgrind --suppressions=/usr/share/openmpi/openmpi-valgrind.supp --track-origins=yes ./myprog 

然而，当我运行像这样的文件有600错误！ 我得到的错误是这两个一遍又一遍。我不知道如何用我目前对valgrind和mpi的理解来解释其中之一。

==8821== Address 0xad5e4d7 is 87 bytes inside a block of size 128 alloc'd 
==8821== at 0x4C2B6CD: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==8821== by 0x6348C52: ??? (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0) 
==8821== by 0x6349AF1: ??? (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0) 
==8821== by 0x6349B81: ??? (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0) 
==8821== by 0x7DA5B9C: ??? (in /usr/lib/openmpi/lib/openmpi/mca_grpcomm_bad.so) 
==8821== by 0x7DA52F4: ??? (in /usr/lib/openmpi/lib/openmpi/mca_grpcomm_bad.so) 
==8821== by 0x5082AF2: ??? (in /usr/lib/openmpi/lib/libmpi.so.0.0.2) 
==8821== by 0x50A33FA: PMPI_Init (in /usr/lib/openmpi/lib/libmpi.so.0.0.2) 
==8821== by 0x408AB5: main (test_send-receive.cpp:8) 
==8821== Uninitialised value was created by a heap allocation 
==8821== at 0x4C2B6CD: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==8821== by 0x635FE2B: ??? (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0) 
==8821== by 0x6360634: opal_ifcount (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0) 
==8821== by 0x81B36AA: ??? (in /usr/lib/openmpi/lib/openmpi/mca_oob_tcp.so) 
==8821== by 0x5C01EE2: mca_oob_base_init (in /usr/lib/openmpi/lib/libopen-rte.so.0.0.0) 
==8821== by 0x7FA97FB: ??? (in /usr/lib/openmpi/lib/openmpi/mca_rml_oob.so) 
==8821== by 0x5C083E4: orte_rml_base_select (in /usr/lib/openmpi/lib/libopen-rte.so.0.0.0) 
==8821== by 0x5BF5EC4: orte_ess_base_app_setup (in /usr/lib/openmpi/lib/libopen-rte.so.0.0.0) 
==8821== by 0x7BA1EAE: ??? (in /usr/lib/openmpi/lib/openmpi/mca_ess_env.so) 
==8821== by 0x5BDDB72: orte_init (in /usr/lib/openmpi/lib/libopen-rte.so.0.0.0) 
==8821== by 0x50822E0: ??? (in /usr/lib/openmpi/lib/libmpi.so.0.0.2) 
==8821== by 0x50A33FA: PMPI_Init (in /usr/lib/openmpi/lib/libmpi.so.0.0.2) 

产生这些错误代码是：

int main(int argc, char *argv[]) { 

    /* init MPI */ 
    MPI_Init(&argc, &argv); 

    int myid; 
    MPI_Comm_rank(MPI_COMM_WORLD, &myid); 
    int i; 
    if(myid == 0){ 
    double * d = new double [10]; 
    for(i = 0; i<10; i++){ 
     d[i] = i + 1.0; 
    } 
    MPI_Send(d, 
      10, 
     MPI_DOUBLE, 
     1, 
     1, 
     MPI_COMM_WORLD); 
    delete[] d; 
    } else { 
    MPI_Status status; 
    double * c = new double [10]; 
    MPI_Recv(c, 
     10, 
     MPI_DOUBLE, 
      0, 
     MPI_ANY_TAG, 
     MPI_COMM_WORLD, 
     &status); 

    for(i = 0; i<10; i++){ 
     printf("%f\n", c[i]); 
    } 
    delete[] c; 
    } 
    MPI_Finalize(); 
    return 0; 
    } 

此外，该代码运行得很好，并输出预期的结果。我误解了数据是如何通过网络发送的，还是有其他事情在这里发生，我不明白？

对不起，关于帖子的长度，你们摇滚甚至读这个。

Answer 1

很可能我们的压缩文件在OMPI v1.6中不是最新版本。 ： - \

您应该在OMPI邮件列表上报告这一点。见http://www.open-mpi.org/community/lists/ompi.php。