Quote from: alek76 on April 07, 2020, 06:00:57 PM

Quote from: akk123 on April 07, 2020, 04:09:25 PM

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when i try 65 bits, i get segmention error. But if i drop the bits to 60 it works fine. I am using Geforce GTX 2070 with ccap 75. Any thoughts please?

https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#features-and-technical-specifications__technical-specifications-per-compute-capability
Try replacing
#define NB_TRHEAD_PER_GROUP 128
at
#define NB_TRHEAD_PER_GROUP 64

...
[meanjumpsize#64] 3FFFFFFFFFFFFFF(now) <= 40A3D5640000000(optimal) <= 7E07E07E07E07E0(next)
[meanjumpsize#64] 3FFFFFFFFFFFFFF(now) <= 40A3D5640000000(optimal) <= 7E07E07E07E07E0(next)
Sp[64]|J-----------------------------------------------------------|Sp[65]
this Sp set has low efficiency (over -25%) for this mean jumpsize
[JmaxofSp] Sp[64]=3FFFFFFFFFFFFFF nearer to optimal mean jumpsize of Sp set
Old DPmodule: 2^30
New DPmodule: 2^24
[DPmodule] 2^24 = 16777216 (0x0000000001000000)
dT[0] 0x 1C1D549AF46361B4B
dT[1] 0x-6F51C29AFFFFFFFFEF66E09BFFFFFFFF6F33A29CFFFFFFFFEF48C09DFFFFFFFDAD4038EFB9C9E4B5
dT[2] 0x215C7ACA0000000021323EC8000000012198BAC600000000216E7EC400000002E3AA447146361 B4B
dT[3] 0x-4DF547D0FFFFFFFFCE34A1D3FFFFFFFE4D9AE7D6FFFFFFFFCDDA41D9FFFFFFFC8B6B3E2DB9C9E4B5
dT[4] 0x42B8F5940000000042647D90000000024331758C0000000042DCFD8800000004057F3F3346361 B4B
dT[5] 0x-2C98CD06FFFFFFFFAD02630BFFFFFFFD2C022D10FFFFFFFFAC6BC315FFFFFFFB6996436BB9C9E4B5
...

Hi thanks for the reply. I tried your suggestion but result is the same. When I increase verbose output though, numbers where the jumpsizes calculated goes drasticly high.