# "lightning.gpu" will be squeezed out by other programs running on the server **URL:** \ **Category:** PennyLane Help\ **Created:** [March 10, 2023, 2:16am UTC](https://discuss.pennylane.ai/t/lightning-gpu-will-be-squeezed-out-by-other-programs-running-on-the-server/2708 "2023-03-10T02:16:50Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![zj-lucky](https://yyz2.discourse-cdn.com/flex012/user_avatar/discuss.pennylane.ai/zj-lucky/32/788_2.png) [@zj-lucky](https://discuss.pennylane.ai/u/zj-lucky)\ **Post date:** [March 10, 2023, 2:16am UTC](https://discuss.pennylane.ai/t/lightning-gpu-will-be-squeezed-out-by-other-programs-running-on-the-server/2708/1 "2023-03-10T02:16:50Z")
It maybe need a large number qubits ---
**Author:** ![Jim](https://avatars.discourse-cdn.com/v4/letter/j/ac91a4/32.png) [@Jim](https://discuss.pennylane.ai/u/Jim)\ **Post date:** [March 11, 2023, 11:08pm UTC](https://discuss.pennylane.ai/t/lightning-gpu-will-be-squeezed-out-by-other-programs-running-on-the-server/2708/2 "2023-03-11T23:08:40Z")
Hello @zj-lucky My understanding is that your code uses only 4 qubits and therefore requires only a little resources. If you want to see whether GPU worked as expected, you may increase the number of qubits to 20~25 using a simple test quantum circuit. Then you should see the utilization rate of GPU increases. For example, 21-qubit circuit could use about 1.6GB memory, and 24-qubit use about 2.9GB memory. ---
**Author:** ![CatalinaAlbornoz](https://yyz2.discourse-cdn.com/flex012/user_avatar/discuss.pennylane.ai/catalinaalbornoz/32/1196_2.png) [@CatalinaAlbornoz](https://discuss.pennylane.ai/u/CatalinaAlbornoz)\ **Post date:** [March 15, 2023, 7:50pm UTC](https://discuss.pennylane.ai/t/lightning-gpu-will-be-squeezed-out-by-other-programs-running-on-the-server/2708/3 "2023-03-15T19:50:59Z")
Great answer @Jim! @zj-lucky, let us know if you have any further questions.