> A cluster of smartphones can get by with passive cooling
Is that true? My phone gets quite hot if I run a taxing load on it for too long. My, perhaps poor, intuition tells me that phones can rely on passive cooling because of the burst nature of phone use. If you’re utilizing your smartphone cluster, I can imagine your fleet overheating.
> If you’re utilizing your smartphone cluster, I can imagine your fleet overheating.
iPhones survive long sessions of 3D gaming even when wrapped in protective plastic shells. If it was an issue, use a bigger passive heatsink than the one they cram into the smartphone form-factor. You could never do that with a server-grade CPU.
With a high-power CPU, the heat emissions are more concentrated than if we use many low-power CPUs.
My iPhone X definitely gets uncomfortably hot after less than 30 minutes of playing PUBG, and I don't even use a case. To illustrate my point, there are "gaming cases" with fans on them, so it's enough of an issue for companies to market solutions at it.
Ok, let's assume the iPhone's cooling system -- i.e. the metal back of the phone -- isn't adequate for long-running heavy loads. I don't think there's a deeper point behind this. Fit a proper passive heatsink and you're all set.
The Raspberry Pi would have been a better example.
Is that true? My phone gets quite hot if I run a taxing load on it for too long. My, perhaps poor, intuition tells me that phones can rely on passive cooling because of the burst nature of phone use. If you’re utilizing your smartphone cluster, I can imagine your fleet overheating.