QPR-12462 add warnings to st trade builder when AD (ext device) is disabled although it is configured in the pe config

Author: pcaspers

OREData/ored/portfolio/builders/scriptedtrade.cpp

@@ -325,8 +325,19 @@ ScriptedTradeEngineBuilder::engine(const std::string& id, const ScriptedTrade& s
             generateAdditionalResults, includePastCashflows_);
     } else if (modelCG_) {
         auto rt = globalParameters_.find("RunType");
-        bool useCachedSensis = useAd_ && (rt != globalParameters_.end() && rt->second == "SensitivityDelta");
+        std::string runType = rt != globalParameters_.end() ? rt->second : "<<no run type set>>";
+        bool useCachedSensis = useAd_ && (runType == "SensitivityDelta");
         bool useExternalDev = useExternalComputeDevice_ && !generateAdditionalResults && !useCachedSensis;
+        if (useAd_ && !useCachedSensis) {
+            WLOG("Will not apply AD although useAD is configured, because runType ("
+                 << runType << ") does not match SensitivitiyDelta");
+        }
+        if (useExternalComputeDevice_ && !useExternalDev) {
+            WLOG("Will not use exxternal compute deivce although useExternalComputeDevice is configured, because we "
+                 "are either applying AD ("
+                 << std::boolalpha << useCachedSensis << ") or we are generating add results ("
+                 << generateAdditionalResults << "), both of which do not support external devices at the moment.");
+        }
         engine = QuantLib::ext::make_shared<ScriptedInstrumentPricingEngineCG>(
             script.npv(), script.results(), modelCG_, ast_, context, mcParams_, script.code(), interactive_,
             generateAdditionalResults, includePastCashflows_, useCachedSensis, useExternalDev,