"Automatic" Scheduler - which one is being used when?

[a3nima]

Hello, I wonder which scheduler is used for EULER / EULER A if set to "Automatic" or is there a list / Info what schedulers will be used with what sampler if set to automatic? Thanks!

[missionfloyd]

stable-diffusion-webui/modules/sd_samplers_kdiffusion.py

Lines 11 to 27 in 1c0a0c4

	samplers_k_diffusion = [
	('DPM++ 2M', 'sample_dpmpp_2m', ['k_dpmpp_2m'], {'scheduler': 'karras'}),
	('DPM++ SDE', 'sample_dpmpp_sde', ['k_dpmpp_sde'], {'scheduler': 'karras', "second_order": True, "brownian_noise": True}),
	('DPM++ 2M SDE', 'sample_dpmpp_2m_sde', ['k_dpmpp_2m_sde'], {'scheduler': 'exponential', "brownian_noise": True}),
	('DPM++ 2M SDE Heun', 'sample_dpmpp_2m_sde', ['k_dpmpp_2m_sde_heun'], {'scheduler': 'exponential', "brownian_noise": True, "solver_type": "heun"}),
	('DPM++ 2S a', 'sample_dpmpp_2s_ancestral', ['k_dpmpp_2s_a'], {'scheduler': 'karras', "uses_ensd": True, "second_order": True}),
	('DPM++ 3M SDE', 'sample_dpmpp_3m_sde', ['k_dpmpp_3m_sde'], {'scheduler': 'exponential', 'discard_next_to_last_sigma': True, "brownian_noise": True}),
	('Euler a', 'sample_euler_ancestral', ['k_euler_a', 'k_euler_ancestral'], {"uses_ensd": True}),
	('Euler', 'sample_euler', ['k_euler'], {}),
	('LMS', 'sample_lms', ['k_lms'], {}),
	('Heun', 'sample_heun', ['k_heun'], {"second_order": True}),
	('DPM2', 'sample_dpm_2', ['k_dpm_2'], {'scheduler': 'karras', 'discard_next_to_last_sigma': True, "second_order": True}),
	('DPM2 a', 'sample_dpm_2_ancestral', ['k_dpm_2_a'], {'scheduler': 'karras', 'discard_next_to_last_sigma': True, "uses_ensd": True, "second_order": True}),
	('DPM fast', 'sample_dpm_fast', ['k_dpm_fast'], {"uses_ensd": True}),
	('DPM adaptive', 'sample_dpm_adaptive', ['k_dpm_ad'], {"uses_ensd": True}),
	('Restart', sd_samplers_extra.restart_sampler, ['restart'], {'scheduler': 'karras', "second_order": True}),
	]

[a3nima]

I dont understand the EULER lines, there is no scheduler mentioned?