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Fix OptiX being shown as available on first generation Maxwell GPUs

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The OptiX kernels are compiled for target "compute_sm_52", which is only available on second
generation Maxwell GPUs, so disable support for older ones.
This commit is contained in:
Patrick Mours 2020-07-24 15:36:09 +02:00 • committed by Brecht Van Lommel
parent 08aaa07adb
commit b4bddf2e3b
1 changed files with 4 additions and 3 deletions
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7
intern/cycles/device/device_optix.cpp
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@ -1543,10 +1543,11 @@ void device_optix_info(const vector<DeviceInfo> &cuda_devices, vector<DeviceInfo
for (DeviceInfo info : cuda_devices) {
assert(info.type == DEVICE_CUDA);
int major;
int major, minor;
cuDeviceGetAttribute(&major, CU_DEVICE_ATTRIBUTE_COMPUTE_CAPABILITY_MAJOR, info.num);
if (major < 5) {
continue; // Only Maxwell and up are supported by OptiX
cuDeviceGetAttribute(&minor, CU_DEVICE_ATTRIBUTE_COMPUTE_CAPABILITY_MINOR, info.num);
if (major < 5 || (major == 5 && minor < 2)) {
continue; // Only Maxwell 2.0 and up are supported by OptiX
}
info.type = DEVICE_OPTIX;