>    has anyone managed to get midas to work on a x86_64 processor. I followed the
> instructions for the 64-bit opteron but i am getting runtime error when trying
> the examples.


We run 64-bit MIDAS on RHEL4 with 64-bit ROOT and everything generally works,
except for compatibility problems with 32-bit MIDAS.

Everything should work if you ensure that on your 64-bit machine everything is
compiled 64-bit (including the mserver - we always forget to install the correct version
to /usr/local/bin). 32-bit MIDAS programs running on other machine
can talk to 64-bit MIDAS via the mserver.

The big problem is that 64-bit and 32-bit ODB turned out to be incompatible - several data
fields have different sizes - and we did not decide yet how to fix this. Any fix will involve
breaking the binary ODB for one of the two platforms (we could break both, just to be fair, heh!)

>  When running example/basic/odb_test I getting errors like
> [odb.c:6818:db_get_record] struct size mismatch for "/Alarms/Alarms/Demo ODB" (464 instead of 452)

Yes, data size mismatch errors indicates that you mixed 32-bit and 64-bit MIDAS. Recompile everyting
as 64-bit, remove all the dot-ODB files, remove all the shared memory segments (ipcrm),
then everything should work.

K.O.