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Russ, I have been playing a bit more with the queue sizes.. It seems that you are correct, that only certain values for the number of products work. I have had success with these: ----- pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6101 (where the default would have been 6103) pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6099 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6098 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6097 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6094 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6093 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6089 and pqcreate -c -q /usr3/ldm/data/ldm.pq -v -s 650000000 -S 158689 (where the default would have been 158691) ----- The following all failed: Default: pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 Creating /cool.pretty/ldm/ldm.pq, 25000000 bytes, 6103 products. Bus error (core dumped) pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6102 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6100 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6096 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6095 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6092 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6091 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6090 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6088 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6087 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6086 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6085 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6084 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6083 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6082 pqcreate -c -q /cool.pretty/ldm/ldm.pq -v -s 25000000 -S 6081 Pete -- +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>+<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<+ ^ Pete Pokrandt V 1447 AOSS Bldg 1225 W Dayton St^ ^ Systems Programmer V Madison, WI 53706 ^ ^ V address@hidden ^ ^ Dept of Atmos & Oceanic Sciences V (608) 262-3086 (Phone/voicemail) ^ ^ University of Wisconsin-Madison V 262-0166 (Fax) ^ <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<+>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>+