Question

我正在使用C ++＆amp; HDF5写一个文件。但遇到问题。这是我使用的代码：

void fileRead::writeFile(string name, const vector<double>* data) {
int dimn = data->size();

hsize_t dim[1] = {data->size()}; //-> 2^13!!!

hid_t sid = H5Pcreate(H5P_DATASET_CREATE);
hid_t didProp = H5Screate_simple(1,dim,NULL);
H5Pset_layout(sid, H5D_COMPACT);

hid_t did = H5Dcreate(fid, name.c_str(),H5T_IEEE_F64LE, didProp, H5P_DEFAULT, sid,H5P_DEFAULT);
H5Dwrite (did, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, H5P_DEFAULT, &(data->at(0)));
H5Dclose(did);

H5Sclose(didProp);
H5Pclose(sid);
}

但是这给了我这个错误信息：

HDF5-DIAG: Error detected in HDF5 (1.8.10) thread 0:   #000: /pub/devel/hdf5/hdf5-1.8.10-1/src/hdf5-1.8.10/src/H5D.c line 170 in H5Dcreate2(): unable to create dataset
    major: Dataset
    minor: Unable to initialize object   #001: /pub/devel/hdf5/hdf5-1.8.10-1/src/hdf5-1.8.10/src/H5Dint.c line 439 in H5D__create_named(): unable to create and link to dataset
    major: Dataset
    minor: Unable to initialize object   #002: /pub/devel/hdf5/hdf5-1.8.10-1/src/hdf5-1.8.10/src/H5L.c line 1638 in H5L_link_object(): unable to create new link to object
    major: Links
    minor: Unable to initialize object   #003: /pub/devel/hdf5/hdf5-1.8.10-1/src/hdf5-1.8.10/src/H5L.c line 1882 in H5L_create_real(): can't insert link
    major: Symbol table
    minor: Unable to insert object   #004: /pub/devel/hdf5/hdf5-1.8.10-1/src/hdf5-1.8.10/src/H5Gtraverse.c line 861 in H5G_traverse(): internal path traversal failed
    major: Symbol table
    minor: Object not found   #005: /pub/devel/hdf5/hdf5-1.8.10-1/src/hdf5-1.8.10/src/H5Gtraverse.c line 641 in H5G_traverse_real(): traversal operator failed
    major: Symbol table
    minor: Callback failed   #006: /pub/devel/hdf5/hdf5-1.8.10-1/src/hdf5-1.8.10/src/H5L.c line 1685 in H5L_link_cb(): unable to create object
    major: Object header
    minor: Unable to initialize object   #007: /pub/devel/hdf5/hdf5-1.8.10-1/src/hdf5-1.8.10/src/H5O.c line 3015 in H5O_obj_create(): unable to open object
    major: Object header
    minor: Can't open object   #008: /pub/devel/hdf5/hdf5-1.8.10-1/src/hdf5-1.8.10/src/H5Doh.c line 293 in H5O__dset_create(): unable to create dataset
    major: Dataset
    minor: Unable to initialize object   #009: /pub/devel/hdf5/hdf5-1.8.10-1/src/hdf5-1.8.10/src/H5Dint.c line 1044 in H5D__create(): unable to construct layout information
    major: Dataset
    minor: Unable to initialize object   #010: /pub/devel/hdf5/hdf5-1.8.10-1/src/hdf5-1.8.10/src/H5Dcompact.c line 212 in H5D__compact_construct(): compact dataset size is bigger than header message maximum size
    major: Dataset
    minor: Unable to initialize object HDF5-DIAG: Error detected in HDF5 (1.8.10) thread 0:   #000: /pub/devel/hdf5/hdf5-1.8.10-1/src/hdf5-1.8.10/src/H5D.c line 391 in H5Dclose(): not a dataset
    major: Invalid arguments to routine
    minor: Inappropriate type

对于所有矢量大小＆gt; = 2 ^ 13（8192）都会发生这种情况。这让我感到困惑，因为阅读时对于较大的文件没有问题，2 ^ 13仍然是一个相当小的数字，所以必须用我的代码钓鱼。

任何帮助都会被宣传。你的麻姑_

Answer 1

来自H5Pset_layout的H5D_COMPACT参数的文档：

将原始数据存储在文件中的数据集对象标头中。这应该只用于具有少量原始数据的数据集。原始数据大小限制为64K（65520字节）。尝试使用raw创建数据集大于此限制的数据将导致H5Dcreate调用失败。

因此，如果您的双打是8个字节，那么您已经遇到了这个限制。

您需要使用其他存储选项之一，连续或分块。

无法写入大于2 ^ 13的向量的HDF5文件

1 个答案: