Method prepareCompute

express/Expr.cpp:890–910

    }
}
void Variable::prepareCompute(const std::vector<VARP>& vars, bool forceCpu) {
    std::vector<EXPRP> exprs;
    for (auto v : vars) {
        if (nullptr != v && nullptr != v->mFrom->get()) {
            if (!v->expr().first->visited() && nullptr == v->expr().first->inside()->mCache) {
                v->expr().first->requireInfo();
                v->expr().first->setVisited(true);
                exprs.emplace_back(v->expr().first);
            }
        }
    }
    for (auto v : vars) {
        if (nullptr != v && nullptr != v->mFrom->get()) {
            v->expr().first->setVisited(false);
        }
    }
    if (exprs.empty()) {
        return;
    }
    ExecutorScope::Current()->makeCache(std::move(exprs), forceCpu);
}

void Variable::compute(const std::vector<VARP>& vars, bool forceCPU) {
    prepareCompute(vars, forceCPU);