Method readFrom

Src/Base/AMReX_IArrayBox.cpp:115–151

}

void
IArrayBox::readFrom (std::istream& is)
{
    std::string type;
    is >> type;
    if (type != "IFAB") {
        amrex::Error(std::string("IArrayBox::readFrom: IFAB is expected, but instead we have ")
                     +type);
    }

    IntDescriptor data_descriptor;
    is >> data_descriptor;

    Box tmp_box;
    int tmp_ncomp;
    is >> tmp_box;
    is >> tmp_ncomp;
    AMREX_ASSERT(tmp_ncomp >= 0 && tmp_ncomp < std::numeric_limits<int>::max());
    is.ignore(99999, '\n');

    if (this->box() != tmp_box || this->nComp() != tmp_ncomp) {
        this->resize(tmp_box, tmp_ncomp);
    }

#ifdef AMREX_USE_GPU
    if (this->arena()->isManaged() || this->arena()->isDevice()) {
        IArrayBox hostfab(this->box(), this->nComp(), The_Pinned_Arena());
        ifabio->read(is, hostfab, data_descriptor);
        Gpu::htod_memcpy_async(this->dataPtr(), hostfab.dataPtr(),
                               hostfab.size()*sizeof(IArrayBox::value_type));
        Gpu::streamSynchronize();
    } else
#endif
    {
        ifabio->read(is, *this, data_descriptor);
    }
}

void
IFABio::write_header (std::ostream& os, const IArrayBox& fab, int nvar)