HLT Collaboration (23-Jun-15) 1 High Level Trigger HLT PRR Planning Volker Lindenstruth Kirchhoff Institute for Physics Chair of Computer Science University Heidelberg, Germany Phone: Fax: WWW: L0 L1 L2 HLT

HLT Collaboration (23-Jun-15) 2 HLT LHCC Milestones - status 542: RORC PPR (FPGA decision), Sep-05 –A number of suitable FPGAs were evaluated and a preliminary decision was taken. –The H-RORC design is progressing and details are being optimized such as packaging and chip size versus cost. We expect to have a small number of prototype modules ready for the RORC PRR in September 2005.DONE 543: HLT PRR (including network), Apr-06 –A number of HLT integration tests and data challenges have been and are currently being conducted. Most components are available to date. –We expect to have a prototype available in due time for the PRR. Delayed 1 month 544: Start of HLT commissioning, Sep-06 –This milestone requires the first batch of all production modules to be available, allowing 4 months for the production of the HLT specific hardware, such as the RORCs, which is feasible. STARTED 545: HLT with full connectivity - approx 30% computing power, Apr-07 –The required compute power for the first running will be evaluated and decided by the collaboration. Noting that the HLT can be segmented into independent sub-parts, for instance serving a TPC sector each, the commissioning can be well done between Sept-06 and April-07 ON TRACK 546: HLT fully installed for HI (3 months prior scheduled full HI run), Apr-08 –This milestone basically requires the ordering and installing of the remaining computer resources (PCs) and their infrastructure, which does not present a particular challenge. ON TRACK

HLT Collaboration (23-Jun-15) 3 HLT combined Milestones status Milestone 540: combined Trigger/DAQ/HLT/TPC tests at SXL May ’06ON TRACK –TRG: LTU –DAQ: »DDLs from SXL to CR1 and CR2 »DATE V5.13 –HLT Mode A –HLT Mode B »All physics raw data to HLT. HLT results read back by DAQ. Milestone 541: large scale test (2 TPC sectors) of data distribution to HLT and final DAQ software for HLT decision handling June ’06ON TRACK –TRG: LTU –DAQ: same as above. –HLT Mode C »All physics raw data to HLT. HLT results read back by DAQ. HLT decisions applied by DAQ