Digital Signal Processing: state-of-the-art at CERN and - PDF document

Digital Signal Processing: state-of-the-art at CERN and recommendations. Maria Elena Angoletta on behalf of the DSP Working Group PS Management Board Meeting 11 March 2002

11 / 03 / 2002 M.E. Angoletta PS/BD TOPICS 1. DSP WG mandate. 2. CERN situation. 3. Standardisation. 4. Training. 5. Efficiency. 6. Conclusion. DSP WG Final Report 2 / 12

11 / 03 / 2002 M.E. Angoletta PS/BD 1. DSP WG mandate To advise PS Division management on how to proceed on DSP technologies & digital signal processing of signals. Scope • Digital Signal Processing (DSPing) • Digital Signal Processors (DSPs) • Programmable Logic Devices (PLDs) Note : PLDs used broadly, to include Simple + Complex PLDs & FPGAs. High Capacity PLDs DSP WG Final Report 3 / 12

11 / 03 / 2002 M.E. Angoletta PS/BD 2. CERN situation - 1 PLDs 1. Widely used, simple to complex tasks. 2. Divisions: PS, SL, EP. 3. CERN provides & supports development tools. 4. Restricted to 3 manufacturers only (Xilinx, Altera & Lattice). DSP WG Final Report 4 / 12

11 / 03 / 2002 M.E. Angoletta PS/BD 2. CERN situation - 2 DSPs 1. Mostly TI and AD. 2. Divisions: PS, SL, (EP). 3. No central support (tools / advice). 4. Typical uses: a. CERN-made boards Cost cutting, specific requirements. Examples: Power supplies, Experiments. b. COTS boards Fewer modules, complex signal treatment. Examples: Diagnostics applications. 5. Useful COTS development systems - D.Modules ( LEGO -like), - VC series cameras. DSP WG Final Report 5 / 12

11 / 03 / 2002 M.E. Angoletta PS/BD 3. Standardisation - 1 Scope Choice of unique & common ( � standard) DSP / PLD platform (h/w + s/w). PLDs • “Loose standardisation” already in place. • Further restrictions impractical. � WG suggests no standardisation DSP WG Final Report 6 / 12

11 / 03 / 2002 M.E. Angoletta PS/BD 3. Standardisation – 2 DSPs De-facto , only TI & AD at CERN. Reasons against further restriction: Global - DSP choice application-driven, cost also - COTS board: often no choice of DSP, a factor - A few DSP projects foreseen (in PS), - Less assembler in future s/w development � easier portability. � WG suggests no standardisation. Instead: Identify “DSP advisors” in PS to help selecting DSPs/COTS boards (need-only basis). Project input: specs, budget & constraints. DSP WG Final Report 7 / 12

11 / 03 / 2002 M.E. Angoletta PS/BD 4. Training - 1 PLDs • CERN-wide basic training already exists. • Other skills covered by university courses. ������ Actual practice in real world is best training. DSP WG Final Report 8 / 12

11 / 03 / 2002 M.E. Angoletta PS/BD 4. Training - 2 DSPs Status • No general CERN-wide training. • A few sporadic courses + manufacturers’ presentations. Needs • DSPing • Continuous information + training for - staff (platform capabilities & progress), - experts (new products + hands-on sessions). Suggestion Regular seminars (staff), website, mailing list. �� Keep manufacturers’ exhibits/seminars. �� Specialised + hands-on training for experts. �� DSP WG Final Report 9 / 12

11 / 03 / 2002 M.E. Angoletta PS/BD 4. Training - 3 DSPing Status • No general CERN-wide training. • A few sporadic courses. Needs • Detailed training for developers/technical engineers. • Remain abreast & profit from progress. • CERN-tailored, formal + hands-on courses. Suggestion Tailored internal + hands-on training. �� Extend it to whole CERN for cost cutting. �� Merge when possible with DSPs training. �� DSP WG Final Report 10 / 12

11 / 03 / 2002 M.E. Angoletta PS/BD 6. Efficiency Aim General recommendations, to help improve working methods’ efficiency. WG Recommendations a) Identify experts in different groups, to consult when needs arise (low impact on PS groups). b) Keep experts updated via regular & specialised training (seminars, hands-on courses etc.). c) Gather project-driven temp inter-group teams, with DSPs/DSPing experts, as needs arise. DSP WG Final Report 11 / 12

11 / 03 / 2002 M.E. Angoletta PS/BD 6. Conclusion Standardisation No standardisation but “DSP Advisors” ( � training!). Training on DSPs • Manufacturers’ presentations/seminars. • Seminars/exhibits + hands-on, specialised training for DSP experts. • Short & regular general/update seminars, as info to staff. • DSP/DSPing website (info) & all-levels mailing list . Training on DSPing • Internal, open-to-all, carefully tailored training. • Extend training actions to whole CERN (cost cutting?). Efficiency • Consult experts in different groups, as needs arise. • Regular specialised + hands-on training for experts. • DSPs/DSPing experts in project-driven, temp inter-group teams, when needs arise. • Support Training Service’s CERN-wide action (steering!). DSP WG Final Report 12 / 12