调用合约报错“out of gas”

[Qingo1013]

用免费试用版(合并版，参考的wiki：https://docs.hyperchain.cn/document/detail?type=1&id=58)的安装包搭建了4个节点区块链
在调用时间复杂度大概1e6的合约方法的时候，抛出了异常，信息如下：
Exception in thread "main" cn.hyperchain.sdk.exception.RequestException: Invoke contract failed: INVOKE_CONTRACT_FAILED:
Caused by: java/lang/RuntimeException:out of gas
at cn.hyperchain.sdk.request.Request.send(Request.java:139)
at cn.hyperchain.sdk.request.PollingRequest.send(PollingRequest.java:64)
at cn.hyperchain.sdk.response.PollingResponse.polling(PollingResponse.java:65)
请问如何解决？