[cmsdy] in CODEGEN and gg_tt.mad CPPProcess.cc, allow disabling FPEs …

…if CUDACPP_RUNTIME_DISABLEFPE is set madgraph5#942 (temporary?)
valassi · Aug 7, 2024 · a3b48fb · a3b48fb
1 parent 4b4b338
commit a3b48fb
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Showing 2 changed files with 12 additions and 8 deletions.
diff --git a/...udacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/madgraph/iolibs/template_files/gpu/process_cc.inc b/...udacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/madgraph/iolibs/template_files/gpu/process_cc.inc
@@ -31,8 +31,9 @@
 
 #include <algorithm>
 #include <array>
-#include <cfenv>  // for feenableexcept, fegetexcept and FE_XXX
-#include <cfloat> // for FLT_MIN
+#include <cfenv>   // for feenableexcept, fegetexcept and FE_XXX
+#include <cfloat>  // for FLT_MIN
+#include <cstdlib> // for getenv
 #include <cstring>
 #include <iomanip>
 #include <iostream>
@@ -61,7 +62,8 @@ fpeEnable()
   //std::cout << "fpeEnable:     FE_INVALID is" << ( ( fpes & FE_INVALID ) ? " " : " NOT " ) << "enabled" << std::endl;
   //std::cout << "fpeEnable:     FE_OVERFLOW is" << ( ( fpes & FE_OVERFLOW ) ? " " : " NOT " ) << "enabled" << std::endl;
   //std::cout << "fpeEnable:     FE_UNDERFLOW is" << ( ( fpes & FE_UNDERFLOW ) ? " " : " NOT " ) << "enabled" << std::endl;
-  constexpr bool enableFPE = true; // this is hardcoded and no longer controlled by getenv( "CUDACPP_RUNTIME_ENABLEFPE" )
+  //constexpr bool enableFPE = true; // this is hardcoded and no longer controlled by getenv( "CUDACPP_RUNTIME_ENABLEFPE" )
+  static const bool enableFPE = !getenv( "CUDACPP_RUNTIME_DISABLEFPE" ); // TEMPORARY? allow bypassing FPEs in CMS DY #942
   if( enableFPE )
   {
     std::cout << "INFO: The following Floating Point Exceptions will cause SIGFPE program aborts: FE_DIVBYZERO, FE_INVALID, FE_OVERFLOW" << std::endl;
@@ -76,7 +78,7 @@ fpeEnable()
   }
   else
   {
-    //std::cout << "INFO: Do not enable SIGFPE traps for Floating Point Exceptions" << std::endl;
+    std::cout << "INFO: Do not enable SIGFPE traps for Floating Point Exceptions (CUDACPP_RUNTIME_DISABLEFPE is non-empty)" << std::endl;
   }
 #else
   //std::cout << "INFO: Keep default SIGFPE settings because feenableexcept is not available on MacOS" << std::endl;

diff --git a/epochX/cudacpp/gg_tt.mad/SubProcesses/P1_gg_ttx/CPPProcess.cc b/epochX/cudacpp/gg_tt.mad/SubProcesses/P1_gg_ttx/CPPProcess.cc
@@ -33,8 +33,9 @@
 
 #include <algorithm>
 #include <array>
-#include <cfenv>  // for feenableexcept, fegetexcept and FE_XXX
-#include <cfloat> // for FLT_MIN
+#include <cfenv>   // for feenableexcept, fegetexcept and FE_XXX
+#include <cfloat>  // for FLT_MIN
+#include <cstdlib> // for getenv
 #include <cstring>
 #include <iomanip>
 #include <iostream>
@@ -63,7 +64,8 @@ fpeEnable()
   //std::cout << "fpeEnable:     FE_INVALID is" << ( ( fpes & FE_INVALID ) ? " " : " NOT " ) << "enabled" << std::endl;
   //std::cout << "fpeEnable:     FE_OVERFLOW is" << ( ( fpes & FE_OVERFLOW ) ? " " : " NOT " ) << "enabled" << std::endl;
   //std::cout << "fpeEnable:     FE_UNDERFLOW is" << ( ( fpes & FE_UNDERFLOW ) ? " " : " NOT " ) << "enabled" << std::endl;
-  constexpr bool enableFPE = true; // this is hardcoded and no longer controlled by getenv( "CUDACPP_RUNTIME_ENABLEFPE" )
+  //constexpr bool enableFPE = true; // this is hardcoded and no longer controlled by getenv( "CUDACPP_RUNTIME_ENABLEFPE" )
+  static const bool enableFPE = !getenv( "CUDACPP_RUNTIME_DISABLEFPE" ); // TEMPORARY? allow bypassing FPEs in CMS DY #942
   if( enableFPE )
   {
     std::cout << "INFO: The following Floating Point Exceptions will cause SIGFPE program aborts: FE_DIVBYZERO, FE_INVALID, FE_OVERFLOW" << std::endl;
@@ -78,7 +80,7 @@ fpeEnable()
   }
   else
   {
-    //std::cout << "INFO: Do not enable SIGFPE traps for Floating Point Exceptions" << std::endl;
+    std::cout << "INFO: Do not enable SIGFPE traps for Floating Point Exceptions (CUDACPP_RUNTIME_DISABLEFPE is non-empty)" << std::endl;
   }
 #else
   //std::cout << "INFO: Keep default SIGFPE settings because feenableexcept is not available on MacOS" << std::endl;