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Table 1
Breakdown of the total runtime into the contributions of the three most important code sections for the convolution of a map at nside = 2048 with kernels of various sizes.
| Kernel support | 1° | 4° | 16° |
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| FFTs | 57% | 47% | 39% |
| Kernel evaluation | 19% | 31% | 39% |
| Ring reduction | 10% | 16% | 21% |
| Others | 14% | 6% | 1% |
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